diff --git a/python/paddle_serving_server_gpu/__init__.py b/python/paddle_serving_server_gpu/__init__.py
index 28ee94d4801c7cc852975c5b921544c06fcea93c..44402e734f3b9dd22db4ae674cf85e5cff614f8f 100644
--- a/python/paddle_serving_server_gpu/__init__.py
+++ b/python/paddle_serving_server_gpu/__init__.py
@@ -315,19 +315,19 @@ class Server(object):
             engine.static_optimization = False
             engine.force_update_static_cache = False
             engine.use_trt = self.use_trt
+            if os.path.exists('{}/__params__'.format(model_config_path)):
+                suffix = ""
+            else:
+                suffix = "_DIR" 
             if device == "arm":
                 engine.use_lite = self.use_lite
                 engine.use_xpu = self.use_xpu
-
-
-
             if device == "cpu":
-                engine.type = "FLUID_CPU_ANALYSIS_DIR"
+                engine.type = "FLUID_CPU_ANALYSIS" + suffix
             elif device == "gpu":
-                engine.type = "FLUID_GPU_ANALYSIS_DIR"
+                engine.type = "FLUID_GPU_ANALYSIS" + suffix
             elif device == "arm":
-                engine.type = "FLUID_ARM_ANALYSIS_DIR"
-
+                engine.type = "FLUID_ARM_ANALYSIS" + suffix
             self.model_toolkit_conf.engines.extend([engine])
 
     def _prepare_infer_service(self, port):