diff --git a/dsLightRag/Routes/TeachingModel/api/ThemeController.py b/dsLightRag/Routes/TeachingModel/api/ThemeController.py
index d625a101..6b9ccf12 100644
--- a/dsLightRag/Routes/TeachingModel/api/ThemeController.py
+++ b/dsLightRag/Routes/TeachingModel/api/ThemeController.py
@@ -88,8 +88,6 @@ async def save(request: Request):
     check_theme_result = await find_by_sql(check_theme_sql,())
     if check_theme_result:
         return {"success": False, "message": "该主题名称已存在！"}
-    if short_name.length > 50:
-        return {"success": False, "message": "主题英文简称不能超过50个字符！"}
     check_short_name_sql = "SELECT short_name FROM t_ai_teaching_model_theme WHERE is_deleted = 0 and bureau_id = '" + bureau_id + "' and short_name = '" + short_name + "'"
     if id != 0:
         check_short_name_sql += " and id <> " + str(id)