diff --git a/tools/torch_to_paddle/convert.py b/tools/torch_to_paddle/convert.py
new file mode 100644
index 000000000..3b3e38e6c
--- /dev/null
+++ b/tools/torch_to_paddle/convert.py
@@ -0,0 +1,253 @@
+import argparse
+import subprocess
+import os
+import re
+import json
+import shutil
+from pathlib import Path
+
+
+def _get_model_path_list(args):
+    # Get a list of model path from args.
+    assert args.model_path_list is not None
+    with open(args.model_path_list) as f:
+        yield from (
+            clean_line
+            for line in f
+            for clean_line in [line.strip()]
+            if len(clean_line) > 0
+            if not clean_line.startswith("#")
+        )
+
+
+def remove_string_from_model(input_file, target_string):
+    # Delete a fixed string from model.py.
+    if not os.path.exists(input_file):
+        print(f"Error: Not found {input_file}")
+        return
+
+    try:
+        with open(input_file, "r", encoding="utf-8") as f:
+            content = f.read()
+
+        if target_string not in content:
+            return
+
+        new_content = content.replace(target_string, "")
+
+        with open(input_file, "w", encoding="utf-8") as f:
+            f.write(new_content)
+
+    except Exception as e:
+        print(f"Error: {e}")
+
+
+def run_paconvert(input_file, output_file, output_log):
+    # Run padconvet to convert model.py from torch to paddle.
+    Path(output_log).parent.mkdir(parents=True, exist_ok=True)
+
+    command = [
+        "paconvert",
+        "-i",
+        input_file,
+        "-o",
+        output_file,
+        "--log_dir",
+        output_log,
+        "--show_unsupport_api",
+    ]
+
+    try:
+        subprocess.run(command, check=True)
+        print("Convert successfully")
+    except subprocess.CalledProcessError as e:
+        print(f"Convert failed: {e}")
+    except FileNotFoundError:
+        print(
+            "Error: The paconvert command could not be found. Please ensure that the tool is installed."
+        )
+
+
+def convert_model_py(model_path, output_dir):
+    # Convert model.py from torch to paddle.
+    input_model_py = os.path.join(model_path, "model.py")
+    output_model_py = os.path.join(output_dir, "model.py")
+    output_log = os.path.join(output_dir, "log.log")
+    run_paconvert(input_model_py, output_model_py, output_log)
+    remove_string_from_model(output_model_py, ">>>>>>")
+
+
+def convert_weight_meta_py(model_path, output_dir):
+    # Convert weight_meta.py from torch to paddle.
+    input_file = os.path.join(model_path, "weight_meta.py")
+    output_file = os.path.join(output_dir, "weight_meta.py")
+
+    if not os.path.exists(input_file):
+        print(f"[Error] Not found: {input_file}")
+        return
+
+    pattern = r"(dtype\s*=\s*['\"])torch(?=.*['\"])"
+    replacement = r"\1paddle"
+
+    try:
+        with open(input_file, "r", encoding="utf-8") as f:
+            content = f.read()
+
+        new_content = re.sub(pattern, replacement, content)
+
+        with open(output_file, "w", encoding="utf-8") as f:
+            f.write(new_content)
+
+    except Exception as e:
+        print(f"Error: {e}")
+
+
+def convert_graph_net_json(model_path, output_dir):
+    # Convert graph_net.json from torch to paddle.
+    input_file = os.path.join(model_path, "graph_net.json")
+    output_file = os.path.join(output_dir, "graph_net.json")
+
+    if not os.path.exists(input_file):
+        print(f"Error: {input_file} not found.")
+        return
+
+    with open(input_file, "r", encoding="utf-8") as f:
+        data = json.load(f)
+
+    if data.get("framework") == "torch":
+        data["framework"] = "paddle"
+
+    with open(output_file, "w", encoding="utf-8") as f:
+        json.dump(data, f, indent=4, ensure_ascii=False)
+
+
+def copy_sample_files(model_path, output_dir, files_copied):
+    # Copy files of sample.
+    for fname in files_copied:
+        input_file = os.path.join(model_path, fname)
+        output_file = os.path.join(output_dir, fname)
+        shutil.copy(input_file, output_file)
+
+
+def convert_sample_from_torch_to_paddle(model_path, output_dir):
+    # Convert a sample from torch to paddle.
+    files_copied = ["input_meta.py", "input_tensor_constraints.py", "graph_hash.txt"]
+    convert_model_py(model_path, output_dir)
+    convert_weight_meta_py(model_path, output_dir)
+    convert_graph_net_json(model_path, output_dir)
+    copy_sample_files(model_path, output_dir, files_copied)
+
+
+def get_api_convert_rate(log_path):
+    # Get api convert rate of sample.
+    try:
+        with open(log_path, "r", encoding="utf-8") as f:
+            for line in f:
+                match = re.search(r"Convert Rate is:\s*(\d+\.?\d*)%", line)
+                if match:
+                    rate = match.group(1)
+                    return rate
+
+    except FileNotFoundError:
+        print(f"Not found: {log_path}")
+
+
+def get_api_unsupported(log_path):
+    # Get a list of api unsupported.
+    api_unsupported_list = []
+    try:
+        with open(log_path, "r", encoding="utf-8") as f:
+            for line in f:
+                line = line.strip()
+                if line.startswith("torch."):
+                    parts = line.split()
+                    if len(parts) >= 2:
+                        name = parts[0]
+                        api_unsupported_list.append((name))
+
+    except FileNotFoundError:
+        print(f"Not found: {log_path}")
+
+    return api_unsupported_list
+
+
+def save_result_to_json(rel_model_path, result, result_file):
+    # Save result of sample to result.json.
+    all_data = {}
+    try:
+        with open(result_file, "r", encoding="utf-8") as json_f:
+            all_data = json.load(json_f)
+
+    except (json.JSONDecodeError, ValueError):
+        all_data = {}
+
+    all_data[rel_model_path] = {
+        "api_convert_rate": result[0],
+        "api_unsupported_list": result[1],
+    }
+
+    with open(result_file, "w", encoding="utf-8") as json_f:
+        json.dump(all_data, json_f, indent=4, ensure_ascii=False)
+
+
+def convert_log_process(rel_model_path, output_dir, result_file):
+    # Get api convert rate and api unsupported from log.
+    log_path = os.path.join(output_dir, "log.log")
+    api_convert_rate = get_api_convert_rate(log_path)
+    api_unsupported_list = get_api_unsupported(log_path)
+    result = [api_convert_rate, api_unsupported_list]
+
+    save_result_to_json(rel_model_path, result, result_file)
+
+
+def main(args):
+    # Convert samples from torch to paddle.
+    model_path_prefix = args.model_path_prefix
+    model_path_list = list(_get_model_path_list(args))
+    output_dir = args.output_dir
+    result_file = args.result_file
+
+    for model_path in model_path_list:
+        abs_model_path = os.path.join(model_path_prefix, model_path)
+        abs_output_dir = os.path.join(output_dir, model_path.split("samples/", 1)[-1])
+        convert_sample_from_torch_to_paddle(abs_model_path, abs_output_dir)
+        convert_log_process(model_path, abs_output_dir, result_file)
+    return
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="Test compiler performance.")
+    parser.add_argument(
+        "--model-path-list",
+        type=str,
+        required=False,
+        default=None,
+        help="Path of file containing model paths.",
+    )
+
+    parser.add_argument(
+        "--output-dir",
+        type=str,
+        required=False,
+        default=None,
+        help="Output directory of samples from torch to paddle.",
+    )
+
+    parser.add_argument(
+        "--model-path-prefix",
+        type=str,
+        required=False,
+        default=None,
+        help="Path prefix of samples in list of model path.",
+    )
+
+    parser.add_argument(
+        "--result-file",
+        type=str,
+        required=False,
+        default=None,
+        help="Result of convert samples from torch to paddle.",
+    )
+
+    args = parser.parse_args()
+    main(args=args)
diff --git a/tools/torch_to_paddle/torch_to_paddle_test.sh b/tools/torch_to_paddle/torch_to_paddle_test.sh
new file mode 100755
index 000000000..61aadf374
--- /dev/null
+++ b/tools/torch_to_paddle/torch_to_paddle_test.sh
@@ -0,0 +1,14 @@
+graph_net=$(python3 -c "import graph_net; import os; print(
+os.path.dirname(graph_net.__file__))")
+GraphNet="$graph_net/.."
+output_dir="$GraphNet/torch_to_paddle_samples"
+mkdir -p "$output_dir"
+log_dir="$GraphNet/torch_to_paddle_samples"
+result_file="$GraphNet/torch_to_paddle_samples/result.json"
+touch "$result_file"
+
+python3 -m tools.torch_to_paddle.convert \
+--model-path-prefix "$GraphNet" \
+--model-path-list "graph_net/config/small100_torch_samples_list.txt" \
+--output-dir "$output_dir" \
+--result-file "$result_file" 
\ No newline at end of file