diff --git a/tests/integrate/218_NO_mixing_tau/INPUT b/tests/integrate/218_NO_mixing_tau/INPUT
deleted file mode 100644
index 6ab222c77c5..00000000000
--- a/tests/integrate/218_NO_mixing_tau/INPUT
+++ /dev/null
@@ -1,37 +0,0 @@
-INPUT_PARAMETERS RUNNING ABACUS-DFT
-
-#Parameters (1.General)
-suffix                  autotest  # suffix of OUTPUT DIR
-nspin                   2   #  1/2/4 4 for SOC
-symmetry                0   #  0/1  1 for open, default
-esolver_type            ksdft  # ksdft, ofdft, sdft, tddft, lj, dp
-dft_functional          MGGA_X_R2SCAN+MGGA_C_R2SCAN  # same as upf file, can be lda/pbe/scan/hf/pbe0/hse
-ks_solver             genelpa  # default for ksdft-lcao
-vdw_method              none  # d3 , d3_bj, none
-pseudo_dir	../../PP_ORB
-orbital_dir	../../PP_ORB
-
-#Parameters (2.Iteration)
-calculation             scf  # scf relax cell-relax md
-ecutwfc                 20
-scf_thr                 1e-7
-printe 1
-#Parameters (3.Basis)
-basis_type              lcao  # lcao or pw
-gamma_only            1  # 0/1, replace KPT
-
-#Parameters (4.Smearing)
-smearing_method         cold    # mp/gaussian/cold/fixed
-smearing_sigma          0.008  # Rydberg
-
-nx 3 
-ny 3 
-nz 3 
-
-#Parameters (5.Mixing)
-mixing_type             broyden  # pulay/broyden
-mixing_ndim             20
-mixing_beta             0.4  # for metal: 0.05-0.4
-mixing_gg0              1.0  # only for metal
-mixing_tau              true
-
diff --git a/tests/integrate/218_NO_mixing_tau/KPT b/tests/integrate/218_NO_mixing_tau/KPT
deleted file mode 100644
index c289c0158aa..00000000000
--- a/tests/integrate/218_NO_mixing_tau/KPT
+++ /dev/null
@@ -1,4 +0,0 @@
-K_POINTS
-0
-Gamma
-1 1 1 0 0 0
diff --git a/tests/integrate/218_NO_mixing_tau/STRU b/tests/integrate/218_NO_mixing_tau/STRU
deleted file mode 100644
index ccb4619857b..00000000000
--- a/tests/integrate/218_NO_mixing_tau/STRU
+++ /dev/null
@@ -1,21 +0,0 @@
-ATOMIC_SPECIES
-C   12.011  C.LDA.UPF
-
-NUMERICAL_ORBITAL
-C_gga_8au_100Ry_2s2p1d.orb
-
-LATTICE_CONSTANT
-1.889726
-
-LATTICE_VECTORS
-    1.5000000000     0.0000000000    0.0000000000 #latvec1
-    0.0000000000     1.5000000000    0.0000000000 #latvec2
-    0.0000000000     0.0000000000    1.5000000000 #latvec3
-
-ATOMIC_POSITIONS
-Direct
-
-C #label
-0.0000   #magnetism
-1 #number of atoms
-        0.0000000000        0.0000000000        0.0000000000 m 0 0 0 
diff --git a/tests/integrate/218_NO_mixing_tau/jd b/tests/integrate/218_NO_mixing_tau/jd
deleted file mode 100644
index a2fce4bf60c..00000000000
--- a/tests/integrate/218_NO_mixing_tau/jd
+++ /dev/null
@@ -1 +0,0 @@
-r2scan functional with mixing tau test in LCAO base. System: C in a 2*2*2-Angstrom^3 box.
diff --git a/tests/integrate/218_NO_mixing_tau/result.ref b/tests/integrate/218_NO_mixing_tau/result.ref
deleted file mode 100644
index b18a26208e0..00000000000
--- a/tests/integrate/218_NO_mixing_tau/result.ref
+++ /dev/null
@@ -1,3 +0,0 @@
-etotref -122.1473085261831
-etotperatomref -122.1473085262
-totaltimeref 2.88
diff --git a/tests/integrate/CASES_CPU.txt b/tests/integrate/CASES_CPU.txt
index c7fd492883a..fd027b35fc6 100644
--- a/tests/integrate/CASES_CPU.txt
+++ b/tests/integrate/CASES_CPU.txt
@@ -188,7 +188,6 @@
 216_NO_scan_Si2
 217_NO_out_pot
 217_NO_out_pot_nscf
-218_NO_mixing_tau
 219_NO_out_elf
 220_NO_KP_MD_MSST
 #220_NO_KP_MD_MSST_level2