diff --git a/source/tests/pt/model/test_autodiff.py b/source/tests/pt/model/test_autodiff.py
index 1bfc53990b..91fc3cabf6 100644
--- a/source/tests/pt/model/test_autodiff.py
+++ b/source/tests/pt/model/test_autodiff.py
@@ -11,6 +11,9 @@
 from deepmd.pt.utils import (
     env,
 )
+from deepmd.pt.utils.utils import (
+    to_numpy_array,
+)
 
 dtype = torch.float64
 
@@ -81,9 +84,7 @@ def np_infer_coord(
                 spins=torch.tensor(spin, device=env.DEVICE).unsqueeze(0),
             )
             # detach
-            ret = {
-                key: result[key].squeeze(0).detach().cpu().numpy() for key in test_keys
-            }
+            ret = {key: to_numpy_array(result[key].squeeze(0)) for key in test_keys}
             return ret
 
         def np_infer_spin(
@@ -97,9 +98,7 @@ def np_infer_spin(
                 spins=torch.tensor(spin, device=env.DEVICE).unsqueeze(0),
             )
             # detach
-            ret = {
-                key: result[key].squeeze(0).detach().cpu().numpy() for key in test_keys
-            }
+            ret = {key: to_numpy_array(result[key].squeeze(0)) for key in test_keys}
             return ret
 
         def ff_coord(_coord):
@@ -152,9 +151,7 @@ def np_infer(
                 atype,
             )
             # detach
-            ret = {
-                key: result[key].squeeze(0).detach().cpu().numpy() for key in test_keys
-            }
+            ret = {key: to_numpy_array(result[key].squeeze(0)) for key in test_keys}
             # detach
             return ret
 
diff --git a/source/tests/pt/model/test_ener_spin_model.py b/source/tests/pt/model/test_ener_spin_model.py
index fb84eeae6f..2bd5c22aaf 100644
--- a/source/tests/pt/model/test_ener_spin_model.py
+++ b/source/tests/pt/model/test_ener_spin_model.py
@@ -310,10 +310,10 @@ def test_dp_consistency(self):
         dp_model = DPSpinModel.deserialize(self.model.serialize())
         # test call
         dp_ret = dp_model.call(
-            self.coord.detach().cpu().numpy(),
-            self.atype.detach().cpu().numpy(),
-            self.spin.detach().cpu().numpy(),
-            self.cell.detach().cpu().numpy(),
+            to_numpy_array(self.coord),
+            to_numpy_array(self.atype),
+            to_numpy_array(self.spin),
+            to_numpy_array(self.cell),
         )
         result = self.model.forward_common(
             self.coord,
@@ -352,11 +352,11 @@ def test_dp_consistency(self):
             self.spin, index=mapping.unsqueeze(-1).tile((1, 1, 3)), dim=1
         )
         dp_ret_lower = dp_model.call_lower(
-            extended_coord.detach().cpu().numpy(),
-            extended_atype.detach().cpu().numpy(),
-            extended_spin.detach().cpu().numpy(),
-            nlist.detach().cpu().numpy(),
-            mapping.detach().cpu().numpy(),
+            to_numpy_array(extended_coord),
+            to_numpy_array(extended_atype),
+            to_numpy_array(extended_spin),
+            to_numpy_array(nlist),
+            to_numpy_array(mapping),
         )
         result_lower = self.model.forward_common_lower(
             extended_coord,