diff --git a/.github/scripts/test_onnx2ncnn.py b/.github/scripts/test_onnx2ncnn.py
index 539304534d..bdc50f315e 100644
--- a/.github/scripts/test_onnx2ncnn.py
+++ b/.github/scripts/test_onnx2ncnn.py
@@ -33,7 +33,8 @@
 def parse_args():
     parser = argparse.ArgumentParser(
         description='MMDeploy onnx2ncnn test tool.')
-    parser.add_argument('--run', type=bool, help='Execute onnx2ncnn bin.')
+    parser.add_argument(
+        '--run', type=bool, help='Execute mmdeploy_onnx2ncnn bin.')
     parser.add_argument(
         '--repo-dir', type=str, default='~/', help='mmcls directory.')
     parser.add_argument(
@@ -77,14 +78,16 @@ def run(args):
         # show processbar
         os.system(' '.join(download_cmd))
 
-        convert_cmd = ['./onnx2ncnn', filename, 'onnx.param', 'onnx.bin']
+        convert_cmd = [
+            './mmdeploy_onnx2ncnn', filename, 'onnx.param', 'onnx.bin'
+        ]
         subprocess.run(convert_cmd, capture_output=True, check=True)
 
 
 def main():
     """test `onnx2ncnn.cpp`
 
-    First generate onnx model then convert it with `onnx2ncnn`.
+    First generate onnx model then convert it with `mmdeploy_onnx2ncnn`.
     """
     args = parse_args()
     if args.generate_onnx:
diff --git a/.github/workflows/backend-ncnn.yml b/.github/workflows/backend-ncnn.yml
index d005963586..f5508621e0 100644
--- a/.github/workflows/backend-ncnn.yml
+++ b/.github/workflows/backend-ncnn.yml
@@ -59,10 +59,10 @@ jobs:
           mkdir -p build && pushd build
           export LD_LIBRARY_PATH=/home/runner/work/mmdeploy/mmdeploy/ncnn-20220420/install/lib/:$LD_LIBRARY_PATH
           cmake -DMMDEPLOY_TARGET_BACKENDS=ncnn -Dncnn_DIR=/home/runner/work/mmdeploy/mmdeploy/ncnn-20220420/install/lib/cmake/ncnn/ ..
-          make onnx2ncnn -j2
+          make mmdeploy_onnx2ncnn -j2
           popd
       - name: Test onnx2ncnn
         run: |
           echo $(pwd)
-          ln -s build/bin/onnx2ncnn ./
+          ln -s build/bin/mmdeploy_onnx2ncnn ./
           python3 .github/scripts/test_onnx2ncnn.py --run 1
diff --git a/.gitignore b/.gitignore
index 78265368e3..0c5d08c9ee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,7 @@ __pycache__/
 # C extensions
 *.so
 onnx2ncnn
+mmdeploy_onnx2ncnn
 
 # Java classes
 *.class
diff --git a/csrc/mmdeploy/backend_ops/ncnn/onnx2ncnn/CMakeLists.txt b/csrc/mmdeploy/backend_ops/ncnn/onnx2ncnn/CMakeLists.txt
index 6901e4fcab..62f9dd42d4 100755
--- a/csrc/mmdeploy/backend_ops/ncnn/onnx2ncnn/CMakeLists.txt
+++ b/csrc/mmdeploy/backend_ops/ncnn/onnx2ncnn/CMakeLists.txt
@@ -5,15 +5,18 @@ project(onnx2ncnn)
 find_package(Protobuf)
 
 if (PROTOBUF_FOUND)
+    if (${Protobuf_PROTOC_EXECUTABLE} STREQUAL "")
+        message(FATAL_ERROR "protoc not found, try `-DProtobuf_PROTOC_EXECUTABLE=/path/to/protoc`")
+    endif ()
     protobuf_generate_cpp(ONNX_PROTO_SRCS ONNX_PROTO_HDRS
             ${CMAKE_CURRENT_SOURCE_DIR}/onnx.proto)
-    add_executable(onnx2ncnn onnx2ncnn.cpp fuse_pass.cpp shape_inference.cpp ${ONNX_PROTO_SRCS} ${ONNX_PROTO_HDRS})
-    target_include_directories(onnx2ncnn PRIVATE ${PROTOBUF_INCLUDE_DIR}
+    add_executable(mmdeploy_onnx2ncnn onnx2ncnn.cpp fuse_pass.cpp shape_inference.cpp ${ONNX_PROTO_SRCS} ${ONNX_PROTO_HDRS})
+    target_include_directories(mmdeploy_onnx2ncnn PRIVATE ${PROTOBUF_INCLUDE_DIR}
             ${CMAKE_CURRENT_BINARY_DIR})
-    target_link_libraries(onnx2ncnn PRIVATE ${PROTOBUF_LIBRARIES})
+    target_link_libraries(mmdeploy_onnx2ncnn PRIVATE ${PROTOBUF_LIBRARIES})
 
     set(_NCNN_CONVERTER_DIR ${CMAKE_SOURCE_DIR}/mmdeploy/backend/ncnn)
-    install(TARGETS onnx2ncnn DESTINATION ${_NCNN_CONVERTER_DIR})
+    install(TARGETS mmdeploy_onnx2ncnn DESTINATION ${_NCNN_CONVERTER_DIR})
 else ()
     message(
             FATAL_ERROR "Protobuf not found, onnx model convert tool won't be built")
diff --git a/docs/en/06-developer-guide/partition_model.md b/docs/en/06-developer-guide/partition_model.md
index eadf63766d..3cfd27c1f8 100644
--- a/docs/en/06-developer-guide/partition_model.md
+++ b/docs/en/06-developer-guide/partition_model.md
@@ -86,4 +86,4 @@ https://download.openmmlab.com/mmdetection/v2.0/yolo/yolov3_d53_mstrain-608_273e
 
 After run the script above, we would have the partitioned onnx file `yolov3.onnx` in the `work-dir`. You can use the visualization tool [netron](https://netron.app/) to check the model structure.
 
-With the partitioned onnx file, you could refer to [useful_tools.md](../useful_tools.md) to do the following procedures such as `onnx2ncnn`, `onnx2tensorrt`.
+With the partitioned onnx file, you could refer to [useful_tools.md](../useful_tools.md) to do the following procedures such as `mmdeploy_onnx2ncnn`, `onnx2tensorrt`.
diff --git a/docs/zh_cn/04-developer-guide/partition_model.md b/docs/zh_cn/04-developer-guide/partition_model.md
index 70843b5e1f..f1d6280fa1 100644
--- a/docs/zh_cn/04-developer-guide/partition_model.md
+++ b/docs/zh_cn/04-developer-guide/partition_model.md
@@ -82,4 +82,4 @@ https://download.openmmlab.com/mmdetection/v2.0/yolo/yolov3_d53_mstrain-608_273e
 --work-dir ./work-dirs/mmdet/yolov3/ort/partition
 ```
 
-当得到分段onnx模型之后，我们可以使用mmdeploy提供的其他工具如`onnx2ncnn`, `onnx2tensorrt`来进行后续的模型部署工作。
+当得到分段onnx模型之后，我们可以使用mmdeploy提供的其他工具如`mmdeploy_onnx2ncnn`, `onnx2tensorrt`来进行后续的模型部署工作。
diff --git a/docs/zh_cn/04-developer-guide/support_new_backend.md b/docs/zh_cn/04-developer-guide/support_new_backend.md
index b8b1a952b0..689fb3a469 100644
--- a/docs/zh_cn/04-developer-guide/support_new_backend.md
+++ b/docs/zh_cn/04-developer-guide/support_new_backend.md
@@ -142,7 +142,7 @@ MMDeploy 中的后端必须支持 ONNX，因此后端能直接加载“.onnx”
            backend_files = []
            for onnx_path in onnx_files:
                create_process(
-                   f'onnx2ncnn with {onnx_path}',
+                   f'mmdeploy_onnx2ncnn with {onnx_path}',
                    target=onnx2ncnn,
                    args=(onnx_path, args.work_dir),
                    kwargs=dict(),
diff --git a/mmdeploy/backend/ncnn/init_plugins.py b/mmdeploy/backend/ncnn/init_plugins.py
index e04ca294c5..519384be94 100644
--- a/mmdeploy/backend/ncnn/init_plugins.py
+++ b/mmdeploy/backend/ncnn/init_plugins.py
@@ -18,13 +18,21 @@ def get_ops_path() -> str:
 
 
 def get_onnx2ncnn_path() -> str:
-    """Get onnx2ncnn path.
+    """Get mmdeploy_onnx2ncnn path.
 
     Returns:
-        str: A path of onnx2ncnn tool.
+        str: A path of mmdeploy_onnx2ncnn tool.
     """
-    candidates = ['./onnx2ncnn', './onnx2ncnn.exe']
-    return get_file_path(os.path.dirname(__file__), candidates)
+    candidates = ['./mmdeploy_onnx2ncnn', './mmdeploy_onnx2ncnn.exe']
+    onnx2ncnn_path = get_file_path(os.path.dirname(__file__), candidates)
+
+    if onnx2ncnn_path is None or not os.path.exists(onnx2ncnn_path):
+        onnx2ncnn_path = get_file_path('', candidates)
+
+    if onnx2ncnn_path is None or not os.path.exists(onnx2ncnn_path):
+        onnx2ncnn_path = shutil.which('mmdeploy_onnx2ncnn')
+
+    return onnx2ncnn_path
 
 
 def get_ncnn2int8_path() -> str:
diff --git a/tools/deploy.py b/tools/deploy.py
index a1eda321ed..537c7aeec2 100644
--- a/tools/deploy.py
+++ b/tools/deploy.py
@@ -221,8 +221,8 @@ def main():
 
         if not is_available_ncnn():
             logger.error('ncnn support is not available, please make sure \
-                1) `onnx2ncnn` existed in `PATH` 2) python import ncnn success'
-                         )
+                1) `mmdeploy_onnx2ncnn` existed in `PATH` \
+                2) python import ncnn success')
             exit(1)
 
         import mmdeploy.apis.ncnn as ncnn_api
diff --git a/tools/onnx2ncnn.py b/tools/onnx2ncnn.py
index eb09e86a19..129e869400 100644
--- a/tools/onnx2ncnn.py
+++ b/tools/onnx2ncnn.py
@@ -27,9 +27,9 @@ def main():
     onnx_path = args.onnx_path
     output_prefix = args.output_prefix
 
-    logger.info(f'onnx2ncnn: \n\tonnx_path: {onnx_path} ')
+    logger.info(f'mmdeploy_onnx2ncnn: \n\tonnx_path: {onnx_path} ')
     from_onnx(onnx_path, output_prefix)
-    logger.info('onnx2ncnn success.')
+    logger.info('mmdeploy_onnx2ncnn success.')
 
 
 if __name__ == '__main__':
diff --git a/tools/package_tools/mmdeploy_builder.py b/tools/package_tools/mmdeploy_builder.py
index 1e3125ec75..b84a0daf42 100644
--- a/tools/package_tools/mmdeploy_builder.py
+++ b/tools/package_tools/mmdeploy_builder.py
@@ -126,6 +126,8 @@ def _remove_in_mmdeploy(path):
     # remove onnx2ncnn and ncnn ext
     _remove_in_mmdeploy('mmdeploy/backend/ncnn/onnx2ncnn')
     _remove_in_mmdeploy('mmdeploy/backend/ncnn/onnx2ncnn.exe')
+    _remove_in_mmdeploy('mmdeploy/backend/ncnn/mmdeploy_onnx2ncnn')
+    _remove_in_mmdeploy('mmdeploy/backend/ncnn/mmdeploy_onnx2ncnn.exe')
     ncnn_ext_paths = glob(
         osp.join(mmdeploy_dir, 'mmdeploy/backend/ncnn/ncnn_ext.*'))
     for ncnn_ext_path in ncnn_ext_paths: