diff --git a/fastdeploy/backends/tensorrt/utils.cc b/fastdeploy/backends/tensorrt/utils.cc
index 20c997ecd..1347b0a4a 100644
--- a/fastdeploy/backends/tensorrt/utils.cc
+++ b/fastdeploy/backends/tensorrt/utils.cc
@@ -97,6 +97,8 @@ nvinfer1::DataType ReaderDtypeToTrtDtype(int reader_dtype) {
   } else if (reader_dtype == 5) {
     // regard int64 as int32
     return nvinfer1::DataType::kINT32;
+  } else if (reader_dtype == 6) {
+    return nvinfer1::DataType::kHALF;
   }
   FDASSERT(false, "Received unexpected data type of %d", reader_dtype);
   return nvinfer1::DataType::kFLOAT;
@@ -135,4 +137,4 @@ nvinfer1::Dims ToDims(const std::vector<int64_t>& vec) {
   return dims;
 }
 
-} // namespace fastdeploy
+}  // namespace fastdeploy
diff --git a/fastdeploy/pybind/runtime.cc b/fastdeploy/pybind/runtime.cc
index ddf9a9585..44647aa29 100644
--- a/fastdeploy/pybind/runtime.cc
+++ b/fastdeploy/pybind/runtime.cc
@@ -36,6 +36,7 @@ void BindRuntime(pybind11::module& m) {
            &RuntimeOption::SetPaddleMKLDNNCacheSize)
       .def("set_lite_power_mode", &RuntimeOption::SetLitePowerMode)
       .def("set_trt_input_shape", &RuntimeOption::SetTrtInputShape)
+      .def("set_trt_max_workspace_size", &RuntimeOption::SetTrtMaxWorkspaceSize)
       .def("enable_trt_fp16", &RuntimeOption::EnableTrtFP16)
       .def("disable_trt_fp16", &RuntimeOption::DisableTrtFP16)
       .def("set_trt_cache_file", &RuntimeOption::SetTrtCacheFile)
diff --git a/fastdeploy/runtime.cc b/fastdeploy/runtime.cc
index 67974fefe..430c70474 100644
--- a/fastdeploy/runtime.cc
+++ b/fastdeploy/runtime.cc
@@ -263,6 +263,10 @@ void RuntimeOption::SetTrtCacheFile(const std::string& cache_file_path) {
   trt_serialize_file = cache_file_path;
 }
 
+void RuntimeOption::SetTrtMaxWorkspaceSize(size_t max_workspace_size) {
+  trt_max_workspace_size = max_workspace_size;
+}
+
 bool Runtime::Init(const RuntimeOption& _option) {
   option = _option;
   if (option.model_format == ModelFormat::AUTOREC) {
diff --git a/fastdeploy/runtime.h b/fastdeploy/runtime.h
index b6f0affd5..4f616ccf4 100644
--- a/fastdeploy/runtime.h
+++ b/fastdeploy/runtime.h
@@ -106,6 +106,8 @@ struct FASTDEPLOY_DECL RuntimeOption {
 
   void SetTrtCacheFile(const std::string& cache_file_path);
 
+  void SetTrtMaxWorkspaceSize(size_t trt_max_workspace_size);
+
   Backend backend = Backend::UNKNOWN;
   // for cpu inference and preprocess
   // default will let the backend choose their own default value
diff --git a/python/fastdeploy/runtime.py b/python/fastdeploy/runtime.py
index 8fb5e8ec7..abd1d4bac 100644
--- a/python/fastdeploy/runtime.py
+++ b/python/fastdeploy/runtime.py
@@ -125,6 +125,9 @@ class RuntimeOption:
     def disable_trt_fp16(self):
         return self._option.disable_trt_fp16()
 
+    def set_trt_max_workspace_size(self, trt_max_workspace_size):
+        return self._option.set_trt_max_workspace_size(trt_max_workspace_size)
+
     def __repr__(self):
         attrs = dir(self._option)
         message = "RuntimeOption(\n"