diff --git a/paddleapex/api_tracer/api_info.py b/paddleapex/api_tracer/api_info.py
index c677845..cbc509e 100644
--- a/paddleapex/api_tracer/api_info.py
+++ b/paddleapex/api_tracer/api_info.py
@@ -107,13 +107,23 @@ def update_APIInfo(self, op_name, rank):
         self.op_name = op_name
         self.rank = rank
 
-    def update_real_data(self, inputs, kwargs):
+
+    def get_extra_param(self):
+        init_param = cfg.cls_target_obj[self.op_name.split('*')[0]]['extra_param']
+        return init_param
+
+    def update_real_data(self, inputs, kwargs, param={}, api_type="op"):
         self.is_half_precision = False
         args_info_list = self.analyze_element(inputs)
         kwargs_info_dict = self.analyze_element(kwargs)
+        param_info_dict = self.analyze_element(param)
+        # print(param_info_dict)
         self.api_info_struct = {
-            self.op_name: {"args": args_info_list, "kwargs": kwargs_info_dict, "dout_list": ["Failed"]}
+            self.op_name: {"api_type": api_type, "args": args_info_list, "kwargs": kwargs_info_dict}
         }
+        self.api_info_struct[self.op_name].update(param_info_dict | {"dout_list": ["Failed"]})
+        # print(self.api_info_struct)
+
         dump_util.update_api_dict(self.api_info_struct, self.rank, self.is_half_precision)
 
     def record_dout(self, grad_value):
diff --git a/paddleapex/api_tracer/config.py b/paddleapex/api_tracer/config.py
index 6c40c73..6fd297c 100644
--- a/paddleapex/api_tracer/config.py
+++ b/paddleapex/api_tracer/config.py
@@ -26,8 +26,11 @@ def __init__(self) -> None:
             configs = yaml.load(f, Loader=yaml.FullLoader)
             self.dump_mode = configs["dump_mode"]
             self.op_target_pth = configs["op_target_path"]
+            self.cls_target_pth = configs["cls_target_path"]
             if self.op_target_pth == "None":
                 self.op_target_pth = os.path.join(current_dir, "configs/op_target.yaml")
+            if self.cls_target_pth == "None":
+                self.cls_target_pth = os.path.join(current_dir, "configs/cls_target.yaml")
             self.dump_root_path = configs["dump_root_path"]
             self.target_step = configs["target_step"]
             self.remote_path = configs["remote_path"]
@@ -42,8 +45,11 @@ def __init__(self) -> None:
         time.sleep(1)
         self.global_step = -1
         self.dump_state = False
+        # When dump_class_state is true, dump_func needs to be temporarily disabled to avoid duplication.
+        self.disable_dump_func_state = False
         self.Op_count = {}
         self.prefix_op_name_ = None
+        self.cls_target_obj = None
 
     def new_step(self):
         self.global_step += 1
@@ -55,4 +61,5 @@ def new_step(self):
             self.dump_state = False
 
 
+
 cfg = Config()
diff --git a/paddleapex/api_tracer/configs/cls_target.yaml b/paddleapex/api_tracer/configs/cls_target.yaml
new file mode 100644
index 0000000..9e74fd8
--- /dev/null
+++ b/paddleapex/api_tracer/configs/cls_target.yaml
@@ -0,0 +1,9 @@
+ignored_cls:
+
+target_cls:
+  paddle_xpu.layers.nn.Linear:
+    extra_param:
+          -  self.weight
+          -  self.bias
+    paddle_cls:
+          paddle.nn.Linear
\ No newline at end of file
diff --git a/paddleapex/api_tracer/configs/tool_config.yaml b/paddleapex/api_tracer/configs/tool_config.yaml
index 30375b1..43c3b7b 100644
--- a/paddleapex/api_tracer/configs/tool_config.yaml
+++ b/paddleapex/api_tracer/configs/tool_config.yaml
@@ -2,6 +2,7 @@
 
 # Target APIs.
 op_target_path: "None"
+cls_target_path: "None"
 # If op_target_path is set to None, tool will set the default config in repository configs.
 dump_root_path: "./dump_info"
 
diff --git a/paddleapex/api_tracer/wrap_op/OPTemplate.py b/paddleapex/api_tracer/wrap_op/OPTemplate.py
index f9e8833..7126d0b 100644
--- a/paddleapex/api_tracer/wrap_op/OPTemplate.py
+++ b/paddleapex/api_tracer/wrap_op/OPTemplate.py
@@ -30,40 +30,101 @@ def __init__(self, op_name):
         cfg.prefix_op_name_ = self.op_name_ + "*"
 
     def forward(self, *args, **kwargs):
-        if self.op_name_ not in cfg.Op_count:
-            cfg.Op_count[self.op_name_] = 1
-            cfg.prefix_op_name_ += "0"
-        else:
-            cfg.Op_count[self.op_name_] += 1
-            cfg.prefix_op_name_ += str(cfg.Op_count[self.op_name_] - 1)
-        if cfg.dump_state:
-            api_recorder = API(cfg.dump_mode)
-            rank = dist.get_rank()
-            api_recorder.update_APIInfo(cfg.prefix_op_name_, rank)
-            api_recorder.update_real_data(args, kwargs)
-            output = getattr(HookOp, "wrap_" + str(self.op_name_))(*args, **kwargs)
-            try:
-                if isinstance(output, paddle.Tensor):
-                    if not output.stop_gradient:
-                        output.register_hook(api_recorder.record_dout)
-                        api_recorder.output_num = 1
-                    else:
-                        api_recorder.record_dout(None)
-                if isinstance(output, (list, tuple)):
-                    need_record = False
-                    for item in output:
-                        if isinstance(item, paddle.Tensor) and not item.stop_gradient:
-                            api_recorder.output_num += 1
-                            need_record = True
-                            item.register_hook(api_recorder.record_dout)
-                    if not need_record:
-                        api_recorder.record_dout(None)
-            except Exception as e:
-                print(self.op_name_, " register hook failed. Due to :", e)
-                api_recorder.record_dout(None)
+        if not cfg.disable_dump_func_state:
+            if self.op_name_ not in cfg.Op_count:
+                cfg.Op_count[self.op_name_] = 1
+                cfg.prefix_op_name_ += "0"
+            else:
+                cfg.Op_count[self.op_name_] += 1
+                cfg.prefix_op_name_ += str(cfg.Op_count[self.op_name_] - 1)
+            if cfg.dump_state:
+                api_recorder = API(cfg.dump_mode)
+                rank = dist.get_rank()
+                api_recorder.update_APIInfo(cfg.prefix_op_name_, rank)
+                api_recorder.update_real_data(args, kwargs)
+                # print(self.op_name_)
+                output = getattr(HookOp, "wrap_" + str(self.op_name_))(*args, **kwargs)
+                try:
+                    if isinstance(output, paddle.Tensor):
+                        if not output.stop_gradient:
+                            output.register_hook(api_recorder.record_dout)
+                            api_recorder.output_num = 1
+                        else:
+                            api_recorder.record_dout(None)
+                    if isinstance(output, (list, tuple)):
+                        need_record = False
+                        for item in output:
+                            if isinstance(item, paddle.Tensor) and not item.stop_gradient:
+                                api_recorder.output_num += 1
+                                need_record = True
+                                item.register_hook(api_recorder.record_dout)
+                        if not need_record:
+                            api_recorder.record_dout(None)
+                except Exception as e:
+                    print(self.op_name_, " register hook failed. Due to :", e)
+                    api_recorder.record_dout(None)
+            else:
+                output = getattr(HookOp, "wrap_" + str(self.op_name_))(*args, **kwargs)
         else:
             output = getattr(HookOp, "wrap_" + str(self.op_name_))(*args, **kwargs)
         return output
 
     def __call__(self, *inputs, **kwargs):
         return self.forward(*inputs, **kwargs)
+
+
+def temp_init(self, *inputs, **kwargs):
+    # print("============init==================")
+    self.cls_all_name_ = self.__class__.__name__
+    # print("self.__class__.__name__ = ", self.cls_all_name_)
+    cfg.prefix_op_name_ = self.cls_all_name_ + "*"
+    cfg.disable_dump_func_state = True
+    super(self.__class__, self).__init__(*inputs, **kwargs)
+
+def temp_forward(self, *inputs, **kwargs):
+    # print("============forward==================")
+    if self.cls_all_name_ not in cfg.Op_count:
+        cfg.Op_count[self.cls_all_name_] = 1
+        cfg.prefix_op_name_ += "0"
+    else:
+        cfg.Op_count[self.cls_all_name_] += 1
+        cfg.prefix_op_name_ += str(cfg.Op_count[self.cls_all_name_] - 1)
+    if cfg.dump_state:
+        api_recorder = API(cfg.dump_mode)
+        rank = dist.get_rank()
+        api_recorder.update_APIInfo(cfg.prefix_op_name_, rank)
+
+        extra_param_str = api_recorder.get_extra_param()
+        extra_param = {param: getattr(self, param.split('.')[1]) for param in extra_param_str}
+
+        # print("extra_param: \n", extra_param)
+        api_recorder.update_real_data(inputs, kwargs, extra_param, "class")
+        # Call the parent class function
+        # print(self.cls_all_name_ + '.forword')
+        output = super(self.__class__, self).forward(*inputs, **kwargs)
+        try:
+            if isinstance(output, paddle.Tensor):
+                if not output.stop_gradient:
+                    output.register_hook(api_recorder.record_dout)
+                    api_recorder.output_num = 1
+                else:
+                    api_recorder.record_dout(None)
+            if isinstance(output, (list, tuple)):
+                need_record = False
+                for item in output:
+                    if isinstance(item, paddle.Tensor) and not item.stop_gradient:
+                        api_recorder.output_num += 1
+                        need_record = True
+                        item.register_hook(api_recorder.record_dout)
+                if not need_record:
+                    api_recorder.record_dout(None)
+        except Exception as e:
+            print(self.cls_all_name_+ '.forword', " register hook failed. Due to :", e)
+            api_recorder.record_dout(None)
+    else:
+        output = super(self.__class__, self).forward(*inputs, **kwargs)
+
+    cfg.disable_dump_func_state = False
+    # print(output)
+    return output
+
diff --git a/paddleapex/api_tracer/wrap_op/get_target_op.py b/paddleapex/api_tracer/wrap_op/get_target_op.py
index 9b5c2f0..9a25845 100644
--- a/paddleapex/api_tracer/wrap_op/get_target_op.py
+++ b/paddleapex/api_tracer/wrap_op/get_target_op.py
@@ -44,7 +44,26 @@ def check_api_stack(self):
 
     def get_target_ops(self):
         self.api_to_catch = set(self.target_op) - set(self.ignored_op)
+
+        # if profile mode is on, we will not catch max and min
         if cfg.profile_mode:
             self.api_to_catch -= set(["paddle.max", "paddle.min"])
         self.check_api_stack()
         return self.api_to_catch
+
+class GetTargetCls(GetTargetOP):
+    def __init__(self, yaml_path):
+        with open(yaml_path, "r") as f:
+            Ops = yaml.safe_load(f)
+            self.target_op = Ops.get("target_cls")
+            cfg.cls_target_obj = self.target_op
+            # print(self.target_op)
+            self.ignored_op = Ops.get("ignored_cls")
+            f.close()
+            if self.ignored_op is None:
+                self.ignored_op = []
+            self.api_to_catch = set(self.target_op.keys()) - set(self.ignored_op)
+    
+    def get_target_ops(self):
+        self.check_api_stack()
+        return self.api_to_catch
diff --git a/paddleapex/api_tracer/wrap_op/hijack_tool.py b/paddleapex/api_tracer/wrap_op/hijack_tool.py
index 8dad0f2..867425f 100644
--- a/paddleapex/api_tracer/wrap_op/hijack_tool.py
+++ b/paddleapex/api_tracer/wrap_op/hijack_tool.py
@@ -13,10 +13,11 @@
 # limitations under the License.
 
 
+import inspect
 from .. import config
 from ...utils import try_import
-from .get_target_op import GetTargetOP
-from .OPTemplate import OPTemplate, HookOp
+from .get_target_op import GetTargetOP, GetTargetCls
+from .OPTemplate import OPTemplate, HookOp, temp_init, temp_forward
 
 cfg = config.cfg
 
@@ -27,22 +28,73 @@ def op_template(*args, **kwargs):
 
     return op_template
 
+# def wrapped_cls(cls_name, cls):
+#     def op_template(*args, **kwargs):
+#         # 可以从HookCls中获取cls对象
+#         wrap_class = type(f"{cls_name}", (cls,), {'__init__': temp_init, 'forward': temp_forward})
+#         return wrap_class(cls_name, *args, **kwargs)
+
+#     return op_template
+
+def add_class(cls, parent_package, class_name, whole_name):
+    # print(whole_name)
+    module = eval(parent_package)
+
+    original_class = getattr(module, class_name, None)
+    if original_class:
+        print(f"Original class before replacement: {class_name} (id: {id(original_class)})")
+    else:
+        print(f"No original class named {class_name} found in {parent_package}")
+    
+    wrap_class = type(f"{whole_name}", (cls,), {'__init__': temp_init, 'forward': temp_forward}) 
+    setattr(module, class_name, wrap_class)
+
+    new_class = getattr(module, class_name, None)
+    if new_class:
+        print(f"New class after replacement: {class_name} (id: {id(new_class)})")
+    
+    if original_class != new_class:
+        print(f"Class {class_name} successfully replaced.")
+    else:
+        print(f"Class {class_name} replacement failed.")
+
+
 
 def hijack_api():
     op = GetTargetOP(cfg.op_target_pth)
+    cls = GetTargetCls(cfg.cls_target_pth)
     target_op = op.get_target_ops()
+    target_cls = cls.get_target_ops()
     for op_name in target_op:
         parent_package, method_name = op_name.rsplit(".", maxsplit=1)
         try:
             pack = parent_package.split(".")[0]
             package_name, module = try_import(pack)
             globals()[package_name] = module
-            setattr(
-                HookOp, "wrap_" + op_name, getattr(eval(parent_package), method_name)
-            )
+            target_object = getattr(eval(parent_package), method_name)
+            if inspect.isclass(target_object):
+                raise ValueError(f"{op_name} is a class")
+            else:
+                setattr(
+                    HookOp, "wrap_" + op_name, target_object
+                )          
         except Exception as err:
             print(op_name, str(err))
 
+    for cls_name in target_cls:
+        parent_package, method_name = cls_name.rsplit(".", maxsplit=1)
+        try:
+            pack = parent_package.split(".")[0]
+            package_name, module = try_import(pack)
+            globals()[package_name] = module
+            target_object = getattr(eval(parent_package), method_name)
+            if inspect.isclass(target_object):
+                add_class(target_object, parent_package, method_name, cls_name)
+            else:
+                raise ValueError(f"{cls} not a class")
+        except Exception as err:
+            print(cls_name, str(err))
+    
     for attr_name in dir(HookOp):
         if attr_name.startswith("wrap_"):
             parent_package, method_name = attr_name[5:].rsplit(".", maxsplit=1)