diff --git a/app/Plugins/Manage/UploadfileManage/UploadfileManage.php b/app/Plugins/Manage/UploadfileManage/UploadfileManage.php
index a8ed391a4..d0ecbd405 100644
--- a/app/Plugins/Manage/UploadfileManage/UploadfileManage.php
+++ b/app/Plugins/Manage/UploadfileManage/UploadfileManage.php
@@ -9,6 +9,7 @@
 
 use App\Models\Common\Uploads;
 use App\Models\Core\Configs;
+use App\Models\Core\Plugins;
 use App\Utilities\Storage\StorageUsageCalculator;
 
 use App\Plugins\Manage\ManagePluginBase;
@@ -36,6 +37,51 @@ class UploadfileManage extends ManagePluginBase
      */
     private $allowed_per_page = [10, 50, 100];
 
+    /**
+     * 検索条件として扱う項目
+     */
+    private $search_condition_keys = [
+        'client_original_name',
+        'id',
+        'size_from',
+        'size_to',
+        'size_unit',
+        'page_name',
+        'created_at_from',
+        'created_at_to',
+        'plugin_names',
+        'sort',
+    ];
+
+    /**
+     * 並べ替えの許可された値
+     */
+    private $allowed_sorts = [
+        'id_asc',
+        'id_desc',
+        'client_original_name_asc',
+        'client_original_name_desc',
+        'size_asc',
+        'size_desc',
+        'created_at_asc',
+        'created_at_desc',
+        'plugin_name_asc',
+        'plugin_name_desc',
+        'page_name_asc',
+        'page_name_desc',
+        'download_count_desc',
+        'play_count_desc',
+    ];
+
+    /**
+     * ファイルサイズ検索で許可する単位
+     */
+    private $allowed_size_units = [
+        'byte',
+        'KB',
+        'MB',
+    ];
+
     /**
      *  権限定義
      */
@@ -83,34 +129,11 @@ public function index($request)
                                 ->leftJoin('plugins', 'plugins.plugin_name', '=', 'uploads.plugin_name')
                                 ->leftJoin('pages', 'pages.id', '=', 'uploads.page_id');
 
-        if ($request->session()->has('search_condition.client_original_name')) {
-            $uploads_query->where('client_original_name', 'like', '%' . $request->session()->get('search_condition.client_original_name') . '%');
-        }
+        $search_condition = $request->session()->get('search_condition', []);
+        $this->applySearchConditions($uploads_query, $search_condition);
 
         // 表示順
-        $sort = 'id_desc';
-        if ($request->session()->has('search_condition.sort')) {
-            $sort = session('search_condition.sort');
-        }
-        if ($sort == 'id_asc') {
-            $uploads_query->orderBy('id', 'asc');
-        } elseif ($sort == 'id_desc') {
-            $uploads_query->orderBy('id', 'desc');
-        } elseif ($sort == 'client_original_name_asc') {
-            $uploads_query->orderBy('client_original_name', 'asc');
-        } elseif ($sort == 'client_original_name_desc') {
-            $uploads_query->orderBy('client_original_name', 'desc');
-        } elseif ($sort == 'size_asc') {
-            $uploads_query->orderBy('size', 'asc');
-        } elseif ($sort == 'size_desc') {
-            $uploads_query->orderBy('size', 'desc');
-        } elseif ($sort == 'created_at_asc') {
-            $uploads_query->orderBy('created_at', 'asc');
-        } elseif ($sort == 'created_at_desc') {
-            $uploads_query->orderBy('created_at', 'desc');
-        } elseif ($sort == 'download_count_desc') {
-            $uploads_query->orderBy('download_count', 'desc');
-        }
+        $this->applySort($uploads_query, $this->getSort($search_condition));
 
         // 表示件数の取得 ※デフォルトは10件
         $per_page = $this->allowed_per_page[0];
@@ -128,6 +151,11 @@ public function index($request)
         // データ使用量の計算
         $storage_usage = StorageUsageCalculator::getDataUsage();
 
+        // プラグイン絞り込み用の一覧
+        $uploadfile_plugins = Plugins::orderBy('display_sequence')
+                                     ->orderBy('plugin_name')
+                                     ->get();
+
         // 入力値をsessionへ保存（検索用）
         $request->flash();
 
@@ -138,6 +166,9 @@ public function index($request)
             "uploads"     => $uploads,
             "allowed_per_page" => $this->allowed_per_page,
             "storage_usage" => $storage_usage,
+            "search_condition_keys" => $this->search_condition_keys,
+            "is_search_condition_set" => $this->isSearchConditionSet($search_condition),
+            "uploadfile_plugins" => $uploadfile_plugins,
         ]);
     }
 
@@ -147,10 +178,7 @@ public function index($request)
     public function search($request)
     {
         // 検索ボタンが押されたときはここが実行される。検索条件を設定してindex を呼ぶ。
-        $search_condition = [
-            "client_original_name" => $request->input('search_condition.client_original_name'),
-            "sort"                 => $request->input('search_condition.sort'),
-        ];
+        $search_condition = $this->getSearchConditionFromRequest($request);
 
         session(["search_condition" => $search_condition]);
 
@@ -162,6 +190,175 @@ public function search($request)
         return redirect("/manage/uploadfile");
     }
 
+    /**
+     * リクエストから検索条件を取得する
+     */
+    private function getSearchConditionFromRequest($request)
+    {
+        $search_condition = [];
+        foreach ($this->search_condition_keys as $key) {
+            $value = $request->input('search_condition.' . $key);
+            $search_condition[$key] = is_string($value) ? trim($value) : $value;
+        }
+
+        if (!in_array($search_condition['sort'], $this->allowed_sorts)) {
+            $search_condition['sort'] = 'id_desc';
+        }
+        if (!in_array($search_condition['size_unit'], $this->allowed_size_units)) {
+            $search_condition['size_unit'] = 'MB';
+        }
+
+        return $search_condition;
+    }
+
+    /**
+     * 検索条件をクエリに適用する
+     */
+    private function applySearchConditions($uploads_query, array $search_condition)
+    {
+        if (!empty($search_condition['client_original_name'])) {
+            $uploads_query->where('uploads.client_original_name', 'like', '%' . $search_condition['client_original_name'] . '%');
+        }
+
+        if (!empty($search_condition['id']) && is_numeric($search_condition['id'])) {
+            $uploads_query->where('uploads.id', intval($search_condition['id']));
+        }
+
+        if (isset($search_condition['size_from']) && is_numeric($search_condition['size_from'])) {
+            $uploads_query->where('uploads.size', '>=', $this->convertSizeToBytes($search_condition['size_from'], $search_condition['size_unit'] ?? 'MB'));
+        }
+
+        if (isset($search_condition['size_to']) && is_numeric($search_condition['size_to'])) {
+            $uploads_query->where('uploads.size', '<=', $this->convertSizeToBytes($search_condition['size_to'], $search_condition['size_unit'] ?? 'MB'));
+        }
+
+        if (!empty($search_condition['page_name'])) {
+            $uploads_query->where('pages.page_name', 'like', '%' . $search_condition['page_name'] . '%');
+        }
+
+        if (!empty($search_condition['created_at_from'])) {
+            $uploads_query->whereDate('uploads.created_at', '>=', $search_condition['created_at_from']);
+        }
+
+        if (!empty($search_condition['created_at_to'])) {
+            $uploads_query->whereDate('uploads.created_at', '<=', $search_condition['created_at_to']);
+        }
+
+        $plugin_names = $this->getSelectedPluginNames($search_condition);
+        if (!empty($plugin_names)) {
+            $uploads_query->whereIn('uploads.plugin_name', $plugin_names);
+        }
+    }
+
+    /**
+     * 入力されたファイルサイズをbyteに変換する
+     */
+    private function convertSizeToBytes($size, $unit)
+    {
+        if ($unit == 'MB') {
+            return intval($size * 1024 * 1024);
+        } elseif ($unit == 'KB') {
+            return intval($size * 1024);
+        }
+
+        return intval($size);
+    }
+
+    /**
+     * 選択されたプラグイン名を配列で取得する
+     */
+    private function getSelectedPluginNames(array $search_condition)
+    {
+        if (empty($search_condition['plugin_names'])) {
+            return [];
+        }
+
+        $plugin_names = is_array($search_condition['plugin_names'])
+            ? $search_condition['plugin_names']
+            : [$search_condition['plugin_names']];
+
+        return array_values(array_filter($plugin_names, function ($plugin_name) {
+            return $plugin_name !== '';
+        }));
+    }
+
+    /**
+     * 並べ替え条件を取得する
+     */
+    private function getSort(array $search_condition)
+    {
+        if (!empty($search_condition['sort']) && in_array($search_condition['sort'], $this->allowed_sorts)) {
+            return $search_condition['sort'];
+        }
+
+        return 'id_desc';
+    }
+
+    /**
+     * 並べ替え条件をクエリに適用する
+     */
+    private function applySort($uploads_query, $sort)
+    {
+        if ($sort == 'id_asc') {
+            $uploads_query->orderBy('uploads.id', 'asc');
+        } elseif ($sort == 'id_desc') {
+            $uploads_query->orderBy('uploads.id', 'desc');
+        } elseif ($sort == 'client_original_name_asc') {
+            $uploads_query->orderBy('uploads.client_original_name', 'asc')->orderBy('uploads.id', 'asc');
+        } elseif ($sort == 'client_original_name_desc') {
+            $uploads_query->orderBy('uploads.client_original_name', 'desc')->orderBy('uploads.id', 'desc');
+        } elseif ($sort == 'size_asc') {
+            $uploads_query->orderBy('uploads.size', 'asc')->orderBy('uploads.id', 'asc');
+        } elseif ($sort == 'size_desc') {
+            $uploads_query->orderBy('uploads.size', 'desc')->orderBy('uploads.id', 'desc');
+        } elseif ($sort == 'created_at_asc') {
+            $uploads_query->orderBy('uploads.created_at', 'asc')->orderBy('uploads.id', 'asc');
+        } elseif ($sort == 'created_at_desc') {
+            $uploads_query->orderBy('uploads.created_at', 'desc')->orderBy('uploads.id', 'desc');
+        } elseif ($sort == 'plugin_name_asc') {
+            $uploads_query->orderBy('plugins.display_sequence', 'asc')->orderBy('uploads.plugin_name', 'asc')->orderBy('uploads.id', 'asc');
+        } elseif ($sort == 'plugin_name_desc') {
+            $uploads_query->orderBy('plugins.display_sequence', 'desc')->orderBy('uploads.plugin_name', 'desc')->orderBy('uploads.id', 'desc');
+        } elseif ($sort == 'page_name_asc') {
+            $uploads_query->orderBy('pages.page_name', 'asc')->orderBy('uploads.id', 'asc');
+        } elseif ($sort == 'page_name_desc') {
+            $uploads_query->orderBy('pages.page_name', 'desc')->orderBy('uploads.id', 'desc');
+        } elseif ($sort == 'download_count_desc') {
+            $uploads_query->orderBy('uploads.download_count', 'desc')->orderBy('uploads.id', 'desc');
+        } elseif ($sort == 'play_count_desc') {
+            $uploads_query->orderBy('uploads.play_count', 'desc')->orderBy('uploads.id', 'desc');
+        }
+    }
+
+    /**
+     * 検索条件が指定されているか判定する
+     */
+    private function isSearchConditionSet(array $search_condition)
+    {
+        foreach ($this->search_condition_keys as $key) {
+            if ($key == 'sort' || $key == 'size_unit') {
+                continue;
+            }
+            if (!isset($search_condition[$key])) {
+                continue;
+            }
+            if (is_array($search_condition[$key])) {
+                $search_condition_values = array_filter($search_condition[$key], function ($value) {
+                    return $value !== null && $value !== '';
+                });
+                if (!empty($search_condition_values)) {
+                    return true;
+                }
+                continue;
+            }
+            if ($search_condition[$key] !== '') {
+                return true;
+            }
+        }
+
+        return !empty($search_condition['sort']) && $search_condition['sort'] != 'id_desc';
+    }
+
     /**
      *  検索条件クリア処理
      */
diff --git a/resources/views/plugins/manage/uploadfile/index.blade.php b/resources/views/plugins/manage/uploadfile/index.blade.php
index 9547826d9..5d4cf1a89 100644
--- a/resources/views/plugins/manage/uploadfile/index.blade.php
+++ b/resources/views/plugins/manage/uploadfile/index.blade.php
@@ -97,10 +97,10 @@
             <div class="card">
                 <button class="btn btn-link p-0 text-left collapsed" type="button" data-toggle="collapse" data-target="#search_collapse" aria-expanded="false" aria-controls="search_collapse">
                     <div class="card-header" id="search_condition">
-                        絞り込み条件 <i class="fas fa-angle-down"></i>@if (Session::has('search_condition.client_original_name') || Session::has('search_condition.sort'))<span class="badge badge-pill badge-primary ml-2">条件設定中</span>@endif
+                        絞り込み条件 <i class="fas fa-angle-down"></i>@if ($is_search_condition_set)<span class="badge badge-pill badge-primary ml-2">条件設定中</span>@endif
                    </div>
                 </button>
-                @if (Session::has('search_condition.client_original_name') || Session::has('search_condition.sort'))
+                @if ($is_search_condition_set)
                 <div id="search_collapse" class="collapse show" aria-labelledby="search_condition" data-parent="#search_accordion">
                 @else
                 <div id="search_collapse" class="collapse" aria-labelledby="search_condition" data-parent="#search_accordion">
@@ -118,6 +118,86 @@
                                 </div>
                             </div>
 
+                            {{-- ID --}}
+                            <div class="form-group row">
+                                <label for="search_condition_id" class="col-md-3 col-form-label text-md-right">ID</label>
+                                <div class="col-md-9">
+                                    <input type="number" name="search_condition[id]" id="search_condition_id" value="{{Session::get('search_condition.id')}}" class="form-control" min="1">
+                                </div>
+                            </div>
+
+                            {{-- ファイルサイズ --}}
+                            <div class="form-group row">
+                                <label for="search_condition_size_from" class="col-md-3 col-form-label text-md-right">ファイルサイズ</label>
+                                <div class="col-md-9">
+                                    <div class="form-row align-items-center">
+                                        <div class="col-md-4">
+                                            <input type="number" name="search_condition[size_from]" id="search_condition_size_from" value="{{Session::get('search_condition.size_from')}}" class="form-control" min="0" step="1" placeholder="以上">
+                                        </div>
+                                        <div class="col-md-1 text-center">〜</div>
+                                        <div class="col-md-4">
+                                            <input type="number" name="search_condition[size_to]" id="search_condition_size_to" value="{{Session::get('search_condition.size_to')}}" class="form-control" min="0" step="1" placeholder="以下">
+                                        </div>
+                                        <div class="col-md-2">
+                                            <select name="search_condition[size_unit]" id="search_condition_size_unit" class="form-control">
+                                                @foreach(['byte', 'KB', 'MB'] as $size_unit)
+                                                    <option value="{{$size_unit}}"@if(Session::get('search_condition.size_unit', 'MB') == $size_unit) selected @endif>{{$size_unit}}</option>
+                                                @endforeach
+                                            </select>
+                                        </div>
+                                    </div>
+                                </div>
+                            </div>
+
+                            {{-- ページ名 --}}
+                            <div class="form-group row">
+                                <label for="search_condition_page_name" class="col-md-3 col-form-label text-md-right">ページ名</label>
+                                <div class="col-md-9">
+                                    <input type="text" name="search_condition[page_name]" id="search_condition_page_name" value="{{Session::get('search_condition.page_name')}}" class="form-control">
+                                </div>
+                            </div>
+
+                            {{-- アップロード日付 --}}
+                            <div class="form-group row">
+                                <label for="search_condition_created_at_from" class="col-md-3 col-form-label text-md-right">アップロード日付</label>
+                                <div class="col-md-9">
+                                    <div class="form-row align-items-center">
+                                        <div class="col-md-5">
+                                            <input type="date" name="search_condition[created_at_from]" id="search_condition_created_at_from" value="{{Session::get('search_condition.created_at_from')}}" class="form-control">
+                                        </div>
+                                        <div class="col-md-1 text-center">〜</div>
+                                        <div class="col-md-5">
+                                            <input type="date" name="search_condition[created_at_to]" id="search_condition_created_at_to" value="{{Session::get('search_condition.created_at_to')}}" class="form-control">
+                                        </div>
+                                    </div>
+                                </div>
+                            </div>
+
+                            {{-- プラグイン --}}
+                            <div class="form-group row">
+                                <label class="col-md-3 col-form-label text-md-right">プラグイン</label>
+                                <div class="col-md-9">
+                                    @php
+                                        $selected_plugin_names = Session::get('search_condition.plugin_names', []);
+                                        if (!is_array($selected_plugin_names)) {
+                                            $selected_plugin_names = [$selected_plugin_names];
+                                        }
+                                    @endphp
+                                    <div class="form-row">
+                                        @foreach($uploadfile_plugins as $uploadfile_plugin)
+                                            <div class="col-md-4 col-sm-6">
+                                                <div class="custom-control custom-checkbox">
+                                                    <input type="checkbox" name="search_condition[plugin_names][]" value="{{$uploadfile_plugin->plugin_name}}" id="search_condition_plugin_names_{{$loop->iteration}}" class="custom-control-input"@if(in_array($uploadfile_plugin->plugin_name, $selected_plugin_names)) checked="checked" @endif>
+                                                    <label class="custom-control-label" for="search_condition_plugin_names_{{$loop->iteration}}">
+                                                        {{$uploadfile_plugin->plugin_name_full}}
+                                                    </label>
+                                                </div>
+                                            </div>
+                                        @endforeach
+                                    </div>
+                                </div>
+                            </div>
+
                             {{-- 並べ替え --}}
                             <div class="form-group row">
                                 <label for="sort" class="col-md-3 col-form-label text-md-right">並べ替え</label>
@@ -131,7 +211,12 @@
                                         <option value="size_desc"@if(Session::get('search_condition.sort') == "size_desc") selected @endif>サイズ 降順</option>
                                         <option value="created_at_asc"@if(Session::get('search_condition.sort') == "created_at_asc") selected @endif>アップロード日時 昇順</option>
                                         <option value="created_at_desc"@if(Session::get('search_condition.sort') == "created_at_desc") selected @endif>アップロード日時 降順</option>
+                                        <option value="plugin_name_asc"@if(Session::get('search_condition.sort') == "plugin_name_asc") selected @endif>プラグイン 昇順</option>
+                                        <option value="plugin_name_desc"@if(Session::get('search_condition.sort') == "plugin_name_desc") selected @endif>プラグイン 降順</option>
+                                        <option value="page_name_asc"@if(Session::get('search_condition.sort') == "page_name_asc") selected @endif>ページ名 昇順</option>
+                                        <option value="page_name_desc"@if(Session::get('search_condition.sort') == "page_name_desc") selected @endif>ページ名 降順</option>
                                         <option value="download_count_desc"@if(Session::get('search_condition.sort') == "download_count_desc") selected @endif>ダウンロード数 降順</option>
+                                        <option value="play_count_desc"@if(Session::get('search_condition.sort') == "play_count_desc") selected @endif>再生回数 降順</option>
                                     </select>
                                 </div>
                             </div>
@@ -170,8 +255,18 @@
             {{-- (右側)表示件数選択 --}}
             <form method="post" action="{{url('/')}}/manage/uploadfile/search" class="form-inline">
                 {{ csrf_field() }}
-                <input type="hidden" name="search_condition[client_original_name]" value="{{Session::get('search_condition.client_original_name')}}">
-                <input type="hidden" name="search_condition[sort]" value="{{Session::get('search_condition.sort')}}">
+                @foreach($search_condition_keys as $search_condition_key)
+                    @php
+                        $search_condition_value = Session::get('search_condition.' . $search_condition_key);
+                    @endphp
+                    @if(is_array($search_condition_value))
+                        @foreach($search_condition_value as $value)
+                            <input type="hidden" name="search_condition[{{$search_condition_key}}][]" value="{{$value}}">
+                        @endforeach
+                    @else
+                        <input type="hidden" name="search_condition[{{$search_condition_key}}]" value="{{$search_condition_value}}">
+                    @endif
+                @endforeach
                 <label for="per_page_quick" class="mr-2 mb-0">表示件数:</label>
                 <select name="uploadfile_per_page" id="per_page_quick" class="form-control form-control-sm" onchange="this.form.submit()">
                     @foreach($allowed_per_page as $per_page_option)
diff --git a/tests/Feature/Plugins/Manage/UploadfileManage/UploadfileManageSearchTest.php b/tests/Feature/Plugins/Manage/UploadfileManage/UploadfileManageSearchTest.php
new file mode 100644
index 000000000..0b7428ac6
--- /dev/null
+++ b/tests/Feature/Plugins/Manage/UploadfileManage/UploadfileManageSearchTest.php
@@ -0,0 +1,297 @@
+<?php
+
+namespace Tests\Feature\Plugins\Manage\UploadfileManage;
+
+use App\Models\Common\Page;
+use App\Models\Common\Uploads;
+use App\Models\Core\Plugins;
+use App\Plugins\Manage\UploadfileManage\UploadfileManage;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Http\Request;
+use Tests\TestCase;
+
+/**
+ * アップロードファイル管理一覧の検索・並べ替えを検証するFeatureテスト。
+ *
+ * 管理プラグインの公開メソッドを通して、ユーザーが指定した条件が一覧結果へ反映されることを守る。
+ */
+class UploadfileManageSearchTest extends TestCase
+{
+    use RefreshDatabase;
+
+    /**
+     * テスト前に初期データを投入する。
+     */
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->seed();
+    }
+
+    /**
+     * ファイルサイズ、ページ名、アップロード日付、プラグインの条件を組み合わせても、該当ファイルだけに絞り込めること。
+     */
+    public function testIndexCanFilterBySizePageCreatedAtAndPlugin(): void
+    {
+        $target_page = Page::factory()->create(['page_name' => '教材ページ', 'permanent_link' => '/materials']);
+        $other_page = Page::factory()->create(['page_name' => '連絡ページ', 'permanent_link' => '/notices']);
+        $this->savePlugin('forms', 'フォーム');
+        $this->savePlugin('blogs', 'ブログ');
+
+        Uploads::factory()->create([
+            'client_original_name' => 'target-form.pdf',
+            'size' => 2048,
+            'plugin_name' => 'forms',
+            'page_id' => $target_page->id,
+            'created_at' => '2024-06-10 10:00:00',
+        ]);
+        Uploads::factory()->create([
+            'client_original_name' => 'too-small.pdf',
+            'size' => 512,
+            'plugin_name' => 'forms',
+            'page_id' => $target_page->id,
+            'created_at' => '2024-06-10 10:00:00',
+        ]);
+        Uploads::factory()->create([
+            'client_original_name' => 'wrong-page.pdf',
+            'size' => 2048,
+            'plugin_name' => 'forms',
+            'page_id' => $other_page->id,
+            'created_at' => '2024-06-10 10:00:00',
+        ]);
+        Uploads::factory()->create([
+            'client_original_name' => 'wrong-plugin.pdf',
+            'size' => 2048,
+            'plugin_name' => 'blogs',
+            'page_id' => $target_page->id,
+            'created_at' => '2024-06-10 10:00:00',
+        ]);
+        Uploads::factory()->create([
+            'client_original_name' => 'wrong-date.pdf',
+            'size' => 2048,
+            'plugin_name' => 'forms',
+            'page_id' => $target_page->id,
+            'created_at' => '2024-07-10 10:00:00',
+        ]);
+
+        $plugin = new UploadfileManage();
+        $response = $plugin->search($this->makeRequest('POST', '/manage/uploadfile/search', [
+            'search_condition' => [
+                'size_from' => '1',
+                'size_to' => '3',
+                'size_unit' => 'KB',
+                'page_name' => '教材',
+                'created_at_from' => '2024-06-01',
+                'created_at_to' => '2024-06-30',
+                'plugin_names' => ['forms'],
+                'sort' => 'id_desc',
+            ],
+        ]));
+
+        $this->assertSame(url('/manage/uploadfile'), $response->getTargetUrl());
+
+        $this->assertSame(['target-form.pdf'], $this->getUploadFileNames($plugin->index($this->makeRequest('GET', '/manage/uploadfile'))));
+    }
+
+    /**
+     * IDを指定した場合は、同名や近い属性のファイルではなく指定IDのファイルだけを表示できること。
+     */
+    public function testIndexCanFilterById(): void
+    {
+        $target = Uploads::factory()->create(['client_original_name' => 'id-target.pdf']);
+        Uploads::factory()->create(['client_original_name' => 'id-other.pdf']);
+
+        $plugin = new UploadfileManage();
+        $response = $plugin->search($this->makeRequest('POST', '/manage/uploadfile/search', [
+            'search_condition' => [
+                'id' => $target->id,
+                'sort' => 'id_desc',
+            ],
+        ]));
+
+        $this->assertSame(url('/manage/uploadfile'), $response->getTargetUrl());
+
+        $this->assertSame(['id-target.pdf'], $this->getUploadFileNames($plugin->index($this->makeRequest('GET', '/manage/uploadfile'))));
+    }
+
+    /**
+     * 検索条件を指定せずに検索や表示件数変更をしても、既定の単位や並べ替えだけで条件設定中扱いにならないこと。
+     */
+    public function testIndexDoesNotTreatDefaultSizeUnitAsSearchCondition(): void
+    {
+        $plugin = new UploadfileManage();
+        $plugin->search($this->makeRequest('POST', '/manage/uploadfile/search', [
+            'search_condition' => [
+                'sort' => 'id_desc',
+            ],
+            'uploadfile_per_page' => 50,
+        ]));
+
+        $view = $plugin->index($this->makeRequest('GET', '/manage/uploadfile'));
+
+        $this->assertFalse($view->getData()['is_search_condition_set']);
+    }
+
+    /**
+     * プラグインはチェックボックスで複数選択でき、選択したプラグインのファイルだけをまとめて表示できること。
+     */
+    public function testIndexCanFilterByMultiplePlugins(): void
+    {
+        $this->savePlugin('forms', 'フォーム');
+        $this->savePlugin('blogs', 'ブログ');
+        $this->savePlugin('cabinets', 'キャビネット');
+        Uploads::factory()->create(['client_original_name' => 'forms-file.pdf', 'plugin_name' => 'forms']);
+        Uploads::factory()->create(['client_original_name' => 'blogs-file.pdf', 'plugin_name' => 'blogs']);
+        Uploads::factory()->create(['client_original_name' => 'cabinets-file.pdf', 'plugin_name' => 'cabinets']);
+
+        $plugin = new UploadfileManage();
+        $plugin->search($this->makeRequest('POST', '/manage/uploadfile/search', [
+            'search_condition' => [
+                'plugin_names' => ['forms', 'blogs'],
+                'sort' => 'client_original_name_asc',
+            ],
+        ]));
+
+        $this->assertSame(
+            ['blogs-file.pdf', 'forms-file.pdf'],
+            $this->getUploadFileNames($plugin->index($this->makeRequest('GET', '/manage/uploadfile')))
+        );
+    }
+
+    /**
+     * ファイルサイズの下限・上限ちょうどのファイルは検索結果に含まれ、範囲外の直前・直後は除外されること。
+     */
+    public function testIndexIncludesFileSizeBoundaryValues(): void
+    {
+        Uploads::factory()->create(['client_original_name' => 'size-before.txt', 'size' => 1023]);
+        Uploads::factory()->create(['client_original_name' => 'size-lower.txt', 'size' => 1024]);
+        Uploads::factory()->create(['client_original_name' => 'size-upper.txt', 'size' => 2048]);
+        Uploads::factory()->create(['client_original_name' => 'size-after.txt', 'size' => 2049]);
+
+        $plugin = new UploadfileManage();
+        $plugin->search($this->makeRequest('POST', '/manage/uploadfile/search', [
+            'search_condition' => [
+                'size_from' => '1',
+                'size_to' => '2',
+                'size_unit' => 'KB',
+                'sort' => 'size_asc',
+            ],
+        ]));
+
+        $this->assertSame(
+            ['size-lower.txt', 'size-upper.txt'],
+            $this->getUploadFileNames($plugin->index($this->makeRequest('GET', '/manage/uploadfile')))
+        );
+    }
+
+    /**
+     * アップロード日付の開始日・終了日に作成されたファイルは時刻に関わらず含まれ、範囲外の日付は除外されること。
+     */
+    public function testIndexIncludesUploadDateBoundaryValues(): void
+    {
+        Uploads::factory()->create(['client_original_name' => 'date-before.txt', 'created_at' => '2024-05-31 23:59:59']);
+        Uploads::factory()->create(['client_original_name' => 'date-lower.txt', 'created_at' => '2024-06-01 00:00:00']);
+        Uploads::factory()->create(['client_original_name' => 'date-upper.txt', 'created_at' => '2024-06-30 23:59:59']);
+        Uploads::factory()->create(['client_original_name' => 'date-after.txt', 'created_at' => '2024-07-01 00:00:00']);
+
+        $plugin = new UploadfileManage();
+        $plugin->search($this->makeRequest('POST', '/manage/uploadfile/search', [
+            'search_condition' => [
+                'created_at_from' => '2024-06-01',
+                'created_at_to' => '2024-06-30',
+                'sort' => 'created_at_asc',
+            ],
+        ]));
+
+        $this->assertSame(
+            ['date-lower.txt', 'date-upper.txt'],
+            $this->getUploadFileNames($plugin->index($this->makeRequest('GET', '/manage/uploadfile')))
+        );
+    }
+
+    /**
+     * ID、ファイルサイズ、アップロード日付、プラグイン、ページ名の並べ替えが一覧の表示順に反映されること。
+     */
+    public function testIndexCanSortByRequestedColumns(): void
+    {
+        $page_beta = Page::factory()->create(['page_name' => 'Beta page', 'permanent_link' => '/beta']);
+        $page_gamma = Page::factory()->create(['page_name' => 'Gamma page', 'permanent_link' => '/gamma']);
+        $page_alpha = Page::factory()->create(['page_name' => 'Alpha page', 'permanent_link' => '/alpha']);
+        $this->savePlugin('alpha', 'Alpha plugin', 30);
+        $this->savePlugin('zeta', 'Zeta plugin', 10);
+        $this->savePlugin('middle', 'Middle plugin', 20);
+
+        Uploads::factory()->create([
+            'client_original_name' => 'sort-one.txt',
+            'size' => 200,
+            'plugin_name' => 'alpha',
+            'page_id' => $page_beta->id,
+            'created_at' => '2024-02-01 00:00:00',
+        ]);
+        Uploads::factory()->create([
+            'client_original_name' => 'sort-two.txt',
+            'size' => 100,
+            'plugin_name' => 'zeta',
+            'page_id' => $page_gamma->id,
+            'created_at' => '2024-01-01 00:00:00',
+        ]);
+        Uploads::factory()->create([
+            'client_original_name' => 'sort-three.txt',
+            'size' => 300,
+            'plugin_name' => 'middle',
+            'page_id' => $page_alpha->id,
+            'created_at' => '2024-03-01 00:00:00',
+        ]);
+
+        $plugin = new UploadfileManage();
+        $this->assertUploadOrder($plugin, 'id_asc', ['sort-one.txt', 'sort-two.txt', 'sort-three.txt']);
+        $this->assertUploadOrder($plugin, 'id_desc', ['sort-three.txt', 'sort-two.txt', 'sort-one.txt']);
+        $this->assertUploadOrder($plugin, 'size_asc', ['sort-two.txt', 'sort-one.txt', 'sort-three.txt']);
+        $this->assertUploadOrder($plugin, 'created_at_asc', ['sort-two.txt', 'sort-one.txt', 'sort-three.txt']);
+        $this->assertUploadOrder($plugin, 'plugin_name_asc', ['sort-two.txt', 'sort-three.txt', 'sort-one.txt']);
+        $this->assertUploadOrder($plugin, 'page_name_asc', ['sort-three.txt', 'sort-one.txt', 'sort-two.txt']);
+    }
+
+    /**
+     * テスト対象メソッドに渡すセッション付きリクエストを作成する。
+     */
+    private function makeRequest(string $method, string $uri, array $parameters = []): Request
+    {
+        $request = Request::create($uri, $method, $parameters);
+        $request->setLaravelSession($this->app['session.store']);
+
+        return $request;
+    }
+
+    /**
+     * 検索・並べ替えで参照するプラグイン表示名を用意する。
+     */
+    private function savePlugin(string $plugin_name, string $plugin_name_full, int $display_sequence = 0): void
+    {
+        $plugin = Plugins::updateOrCreate(
+            ['plugin_name' => $plugin_name],
+            ['plugin_name_full' => $plugin_name_full, 'display_flag' => 1]
+        );
+        $plugin->display_sequence = $display_sequence;
+        $plugin->save();
+    }
+
+    /**
+     * 指定した並べ替え条件でファイル名が期待順に表示されることを確認する。
+     */
+    private function assertUploadOrder(UploadfileManage $plugin, string $sort, array $expected_file_names): void
+    {
+        session(['search_condition' => ['sort' => $sort]]);
+
+        $this->assertSame($expected_file_names, $this->getUploadFileNames($plugin->index($this->makeRequest('GET', '/manage/uploadfile'))));
+    }
+
+    /**
+     * 一覧Viewから表示対象のファイル名だけを取り出す。
+     */
+    private function getUploadFileNames($view): array
+    {
+        return $view->getData()['uploads']->getCollection()->pluck('client_original_name')->all();
+    }
+}