diff --git a/fastdeploy/pybind/main.cc.in b/fastdeploy/pybind/main.cc.in
index 5e11ee808..5fde0082a 100755
--- a/fastdeploy/pybind/main.cc.in
+++ b/fastdeploy/pybind/main.cc.in
@@ -181,9 +181,6 @@ PYBIND11_MODULE(@PY_LIBRARY_NAME@, m) {
       m.def_submodule("text", "Text module of FastDeploy.");
   BindText(text_module);
 #endif
-  auto rknpu2_module =
-      m.def_submodule("rknpu2", "RKNPU2 config module of FastDeploy.");
-  BindRKNPU2Config(rknpu2_module);
 }
 
 }  // namespace fastdeploy
diff --git a/fastdeploy/pybind/rknpu2_config_pybind.cc b/fastdeploy/runtime/backends/rknpu2/rknpu2_config_pybind.cc
similarity index 97%
rename from fastdeploy/pybind/rknpu2_config_pybind.cc
rename to fastdeploy/runtime/backends/rknpu2/rknpu2_config_pybind.cc
index d7f95de8a..028b7a9f1 100644
--- a/fastdeploy/pybind/rknpu2_config_pybind.cc
+++ b/fastdeploy/runtime/backends/rknpu2/rknpu2_config_pybind.cc
@@ -14,7 +14,7 @@
 #include "fastdeploy/pybind/main.h"
 #include "fastdeploy/runtime/backends/rknpu2/option.h"
 namespace fastdeploy {
-void BindRKNPU2Config(pybind11::module& m) {
+void BindRKNPU2Option(pybind11::module& m) {
   pybind11::enum_<fastdeploy::rknpu2::CpuName>(
       m, "CpuName", pybind11::arithmetic(), "CpuName for inference.")
       .value("RK356X", fastdeploy::rknpu2::CpuName::RK356X)
diff --git a/fastdeploy/runtime/option_pybind.cc b/fastdeploy/runtime/option_pybind.cc
index e5443d894..b5ac9e5b9 100644
--- a/fastdeploy/runtime/option_pybind.cc
+++ b/fastdeploy/runtime/option_pybind.cc
@@ -22,7 +22,7 @@ void BindOrtOption(pybind11::module& m);
 void BindTrtOption(pybind11::module& m);
 void BindPaddleOption(pybind11::module& m);
 void BindPorosOption(pybind11::module& m);
-
+void BindRKNPU2Option(pybind11::module& m);
 void BindOption(pybind11::module& m) {
   BindLiteOption(m);
   BindOpenVINOOption(m);
@@ -30,6 +30,7 @@ void BindOption(pybind11::module& m) {
   BindTrtOption(m);
   BindPaddleOption(m);
   BindPorosOption(m);
+  BindRKNPU2Option(m);
 
   pybind11::class_<RuntimeOption>(m, "RuntimeOption")
       .def(pybind11::init())