diff --git a/workflow_service/comfy/comfy_workflow.py b/workflow_service/comfy/comfy_workflow.py
index 3cf78a4..fc86889 100644
--- a/workflow_service/comfy/comfy_workflow.py
+++ b/workflow_service/comfy/comfy_workflow.py
@@ -52,7 +52,7 @@ def parse_api_spec(workflow_data: dict) -> Dict[str, Dict[str, Any]]:
 
         if title.startswith(API_INPUT_PREFIX):
             # 提取节点名（去掉API_INPUT_PREFIX前缀）
-            node_name = title[len(API_INPUT_PREFIX) :].lower()
+            node_name = title[len(API_INPUT_PREFIX) :]
 
             # 如果节点名不在inputs中，创建新的节点条目
             if node_name not in spec["inputs"]:
@@ -64,7 +64,7 @@ def parse_api_spec(workflow_data: dict) -> Dict[str, Dict[str, Any]]:
             if "inputs" in node:
                 for a_input in node.get("inputs", []):
                     if a_input.get("link") is None and "widget" in a_input:
-                        widget_name = a_input["widget"]["name"].lower()
+                        widget_name = a_input["widget"]["name"]
 
                         # 特殊处理：隐藏LoadImage节点的upload字段
                         if node.get("type") == "LoadImage" and widget_name == "upload":
@@ -82,7 +82,7 @@ def parse_api_spec(workflow_data: dict) -> Dict[str, Dict[str, Any]]:
 
         elif title.startswith(API_OUTPUT_PREFIX):
             # 提取节点名（去掉API_OUTPUT_PREFIX前缀）
-            node_name = title[len(API_OUTPUT_PREFIX) :].lower()
+            node_name = title[len(API_OUTPUT_PREFIX) :]
 
             # 如果节点名不在outputs中，创建新的节点条目
             if node_name not in spec["outputs"]:
@@ -93,7 +93,7 @@ def parse_api_spec(workflow_data: dict) -> Dict[str, Dict[str, Any]]:
 
             if "outputs" in node:
                 for an_output in node.get("outputs", []):
-                    output_name = an_output["name"].lower()
+                    output_name = an_output["name"]
 
                     # 确保outputs字段存在
                     if "outputs" not in spec["outputs"][node_name]:
@@ -139,7 +139,7 @@ def parse_inputs_json_schema(workflow_data: dict) -> dict:
 
         if title.startswith(API_INPUT_PREFIX):
             # 提取节点名（去掉API_INPUT_PREFIX前缀）
-            node_name = title[len(API_INPUT_PREFIX) :].lower()
+            node_name = title[len(API_INPUT_PREFIX) :]
 
             if node_name not in input_nodes:
                 input_nodes[node_name] = {
@@ -152,7 +152,7 @@ def parse_inputs_json_schema(workflow_data: dict) -> dict:
             if "inputs" in node:
                 for a_input in node.get("inputs", []):
                     if a_input.get("link") is None and "widget" in a_input:
-                        widget_name = a_input["widget"]["name"].lower()
+                        widget_name = a_input["widget"]["name"]
 
                         # 特殊处理：隐藏LoadImage节点的upload字段
                         if node.get("type") == "LoadImage" and widget_name == "upload":