diff --git a/bmtrain/store.py b/bmtrain/store.py
index c00e734f..254213bd 100644
--- a/bmtrain/store.py
+++ b/bmtrain/store.py
@@ -37,20 +37,6 @@ def _save_to_local_rank0(model : torch.nn.Module, destination=None, prefix=''):
             destination = hook_result
     return destination
 
-#model: GPTModel
-def _transform_state_dict_to_libcpm(model : torch.nn.Module, libcpm, destination=None, prefix=''):
-    config['save_param_to_cpu'] = False
-    #state_dict = OrderedDict()  
-    for name, module in model._modules.items():
-        if isinstance(model, TransformerBlockList):
-            for layer in model:
-                _transform_state_dict_to_libcpm(layer, libcpm, destination, prefix)
-        layer_state_dict = _save_to_local_rank0(module, destination, prefix + name + '.')
-        #state_dict.update(layer_state_dict)
-        if config['local_rank'] == 0:
-            libcpm.load_layer_state_dict(layer_state_dict)
-    #return state_dict
-    print("after transform state_dict to libcpm")
 
 def _save_to_rank0(model : torch.nn.Module, destination=None, prefix=''):
     if destination is None:
@@ -69,6 +55,30 @@ def _save_to_rank0(model : torch.nn.Module, destination=None, prefix=''):
     else:
         model._save_to_state_dict(destination, prefix, False)
     return destination
+
+def _save_to_infer_model(model : torch.nn.Module, infer_model, destination=None, prefix=''):
+    config['save_param_to_cpu'] = False
+    if destination is None:
+        destination = OrderedDict()
+        destination._metadata = OrderedDict()
+    destination._metadata[prefix[:-1]] = local_metadata = dict(version=model._version)
+    _save_to_state_dict(model, config['local_rank'], destination, prefix)
+    for name, module in model._modules.items():
+        if module is not None:
+            if isinstance(module, TransformerBlockList):
+                for local_name, local_module in module._modules.items():
+                    local_state_dict = _save_to_local_rank0(local_module, None, prefix + name + "." + local_name + '.')
+                    if config['local_rank'] == 0:
+                        infer_model.load_layer_state_dict(local_state_dict)
+            else:
+                _save_to_infer_model(module, infer_model, destination, prefix + name + '.')
+    for hook in model._state_dict_hooks.values():
+        hook_result = hook(model, destination, prefix, local_metadata)
+        if hook_result is not None:
+            destination = hook_result
+
+    if config['local_rank'] == 0:
+        infer_model.load_layer_state_dict(destination)