diff --git a/dbgpt/model/cluster/worker/manager.py b/dbgpt/model/cluster/worker/manager.py
index 234b44726..8e65ed8e2 100644
--- a/dbgpt/model/cluster/worker/manager.py
+++ b/dbgpt/model/cluster/worker/manager.py
@@ -217,7 +217,6 @@ async def model_startup(self, startup_req: WorkerStartupRequest):
         )
         if not worker_params.model_name:
             worker_params.model_name = model_name
-        assert model_name == worker_params.model_name
         worker = _build_worker(worker_params)
         command_args = _dict_to_command_args(params)
         success = await self.run_blocking_func(
@@ -235,7 +234,9 @@ async def model_startup(self, startup_req: WorkerStartupRequest):
                 f"Unsupported worker type: {worker_type}, now supported worker type: {supported_types}"
             )
         start_apply_req = WorkerApplyRequest(
-            model=model_name, apply_type=WorkerApplyType.START, worker_type=worker_type
+            model=worker_params.model_name,
+            apply_type=WorkerApplyType.START,
+            worker_type=worker_type,
         )
         out: WorkerApplyOutput = None
         try:
@@ -895,6 +896,8 @@ def _parse_worker_params(
         **kwargs,
     )
     worker_params.update_from(new_worker_params)
+    if worker_params.model_alias:
+        worker_params.model_name = worker_params.model_alias
 
     # logger.info(f"Worker params: {worker_params}")
     return worker_params
diff --git a/dbgpt/model/parameter.py b/dbgpt/model/parameter.py
index 3dc68afcc..7af18a0a9 100644
--- a/dbgpt/model/parameter.py
+++ b/dbgpt/model/parameter.py
@@ -164,6 +164,10 @@ class ModelWorkerParameters(BaseModelParameters):
         default=None,
         metadata={"valid_values": WorkerType.values(), "help": "Worker type"},
     )
+    model_alias: Optional[str] = field(
+        default=None,
+        metadata={"help": "model alias"},
+    )
     worker_class: Optional[str] = field(
         default=None,
         metadata={"help": "Model worker class, dbgpt.model.cluster.DefaultModelWorker"},