diff --git a/aries/src/service/relay_server.rs b/aries/src/service/relay_server.rs
index 7a0f1921f..2245f56f1 100644
--- a/aries/src/service/relay_server.rs
+++ b/aries/src/service/relay_server.rs
@@ -13,7 +13,9 @@ use clap::Parser;
 use common::config::Config;
 use gemini::ztm::hub::{LocalHub, ZTMUserPermit, ZTMCA};
 use gemini::ztm::send_get_request_to_peer_by_tunnel;
-use gemini::{LFSInfo, LFSInfoPostBody, Node, RelayGetParams, RelayResultRes, RepoInfo};
+use gemini::{
+    LFSChunk, LFSInfo, LFSInfoPostBody, LFSInfoRes, Node, RelayGetParams, RelayResultRes, RepoInfo,
+};
 use jupiter::context::Context;
 use tower::ServiceBuilder;
 use tower_http::cors::{Any, CorsLayer};
@@ -92,7 +94,8 @@ pub fn routers() -> Router<AppState> {
         .route("/repo_list", get(repo_list))
         .route("/test/send", get(send_message))
         .route("/lfs_share", post(lfs_share))
-        .route("/lfs_list", get(lfs_list));
+        .route("/lfs_list", get(lfs_list))
+        .route("/lfs_chunk", get(lfs_chunk));
 
     Router::new()
         .merge(router)
@@ -230,6 +233,11 @@ pub async fn lfs_list(
     Query(_query): Query<RelayGetParams>,
     state: State<AppState>,
 ) -> Result<Json<Vec<LFSInfo>>, (StatusCode, String)> {
+    let lfs_info_list_result = lfs_list_handler(state).await;
+    Ok(Json(lfs_info_list_result))
+}
+
+async fn lfs_list_handler(state: State<AppState>) -> Vec<LFSInfo> {
     let storage = state.context.services.ztm_storage.clone();
     let lfs_info_list: Vec<LFSInfo> = storage
         .get_all_lfs_info()
@@ -254,7 +262,7 @@ pub async fn lfs_list(
         }
         lfs_info_list_result.push(lfs.clone());
     }
-    Ok(Json(lfs_info_list_result))
+    lfs_info_list_result
 }
 
 async fn send_message(
@@ -288,6 +296,47 @@ async fn send_message(
     Ok(Json(result))
 }
 
+pub async fn lfs_chunk(
+    Query(query): Query<RelayGetParams>,
+    state: State<AppState>,
+) -> Result<Json<LFSInfoRes>, (StatusCode, String)> {
+    if query.file_hash.is_none() {
+        return Err((StatusCode::BAD_REQUEST, "not enough paras".to_string()));
+    }
+    let file_hash = query.file_hash.unwrap().clone();
+
+    let lfs_object = state
+        .context
+        .services
+        .lfs_db_storage
+        .get_lfs_object(file_hash.clone())
+        .await
+        .unwrap();
+
+    if lfs_object.is_none() {
+        return Err((
+            StatusCode::INTERNAL_SERVER_ERROR,
+            "lfs chunk info not found".to_string(),
+        ));
+    }
+
+    let mut lfs_object_chunks: Vec<LFSChunk> = state
+        .context
+        .services
+        .lfs_db_storage
+        .get_lfs_relations(file_hash)
+        .await
+        .unwrap()
+        .iter()
+        .map(|x| x.clone().into())
+        .collect();
+
+    let mut lfs_info_res: LFSInfoRes = lfs_object.unwrap().into();
+    lfs_info_res.chunks.append(&mut lfs_object_chunks);
+
+    Ok(Json(lfs_info_res))
+}
+
 async fn loop_running(context: Context) {
     let mut interval = tokio::time::interval(Duration::from_secs(60));
 
diff --git a/gemini/src/lfs/mod.rs b/gemini/src/lfs/mod.rs
index b04565bab..545196a62 100644
--- a/gemini/src/lfs/mod.rs
+++ b/gemini/src/lfs/mod.rs
@@ -1,9 +1,10 @@
 use std::collections::HashSet;
 
-use reqwest::Client;
+use reqwest::{get, Client};
 
 use crate::{
     util::handle_response, ztm::get_or_create_remote_mega_tunnel, LFSInfo, LFSInfoPostBody,
+    LFSInfoRes,
 };
 
 /// share lfs
@@ -62,6 +63,44 @@ pub async fn share_lfs(
     }
 }
 
+/// get lfs chunks info
+///
+/// ## paras
+/// - `bootstrap_node`: bootstrap_node
+/// - `file_hash`: file_hash
+///
+/// for example
+/// ```
+/// {
+///  "bootstrap_node":"https://gitmono.org/relay",
+///  "file_hash":"52c90a86cb034b7a1c4beb79304fa76bd0a6cbb7b168c3a935076c714bd1c6b6",
+///}
+/// ```
+/// This method will send a GET request to the relay to get lfs chunks info
+///
+pub async fn get_lfs_chunks_info(bootstrap_node: String, file_hash: String) -> Option<LFSInfoRes> {
+    let url = format!(
+        "{}/api/v1/lfs_chunk?file_hash={}",
+        bootstrap_node, file_hash
+    );
+    let lfs_info: LFSInfoRes = match get(url.clone()).await {
+        Ok(response) => {
+            if !response.status().is_success() {
+                println!("Get lfs chuncks info failed  {}", url);
+                return None;
+            }
+            let body = response.text().await.unwrap();
+            let lfs_info: LFSInfoRes = serde_json::from_str(&body).unwrap();
+            lfs_info
+        }
+        Err(_) => {
+            println!("Get lfs chuncks info failed {}", url);
+            return None;
+        }
+    };
+    Some(lfs_info)
+}
+
 /// create lfs download local ports
 ///
 /// ## Paras
@@ -254,4 +293,14 @@ mod tests {
     //         println!("Check LFS SHA256 failed");
     //     }
     // }
+
+    // #[tokio::test]
+    // async fn test_get_chunk_info() {
+    //     let res = super::get_lfs_chunks_info(
+    //         "http://localhost:8001".to_string(),
+    //         "52c90a86cb034b7a1c4beb79304fa76bd0a6cbb7b168c3a935076c714bd1c6b6".to_string(),
+    //     )
+    //     .await;
+    //     println!("{:?}", res);
+    // }
 }
diff --git a/gemini/src/lib.rs b/gemini/src/lib.rs
index 914730827..9d9b4fcda 100644
--- a/gemini/src/lib.rs
+++ b/gemini/src/lib.rs
@@ -1,6 +1,6 @@
 use std::fmt;
 
-use callisto::{ztm_lfs_info, ztm_node, ztm_repo_info};
+use callisto::{lfs_objects, lfs_split_relations, ztm_lfs_info, ztm_node, ztm_repo_info};
 use chrono::Utc;
 use common::utils::generate_id;
 use serde::{Deserialize, Serialize};
@@ -22,6 +22,7 @@ pub struct RelayGetParams {
     pub agent_name: Option<String>,
     pub service_name: Option<String>,
     pub service_port: Option<i32>,
+    pub file_hash: Option<String>,
 }
 
 #[derive(Serialize, Deserialize, Debug)]
@@ -267,3 +268,36 @@ impl From<LFSInfoPostBody> for LFSInfo {
         }
     }
 }
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub struct LFSInfoRes {
+    pub oid: String,
+    pub size: i64,
+    pub chunks: Vec<LFSChunk>,
+}
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub struct LFSChunk {
+    pub sub_oid: String,
+    pub offset: i64,
+    pub size: i64,
+}
+
+impl From<lfs_objects::Model> for LFSInfoRes {
+    fn from(lfs: lfs_objects::Model) -> Self {
+        LFSInfoRes {
+            oid: lfs.oid,
+            size: lfs.size,
+            chunks: vec![],
+        }
+    }
+}
+
+impl From<lfs_split_relations::Model> for LFSChunk {
+    fn from(chunk: lfs_split_relations::Model) -> Self {
+        LFSChunk {
+            sub_oid: chunk.sub_oid,
+            offset: chunk.offset,
+            size: chunk.size,
+        }
+    }
+}