diff --git a/astrbot/core/star/filter/command.py b/astrbot/core/star/filter/command.py
index e5400a757..9ceed54a9 100755
--- a/astrbot/core/star/filter/command.py
+++ b/astrbot/core/star/filter/command.py
@@ -153,17 +153,10 @@ class CommandFilter(HandlerFilter):
                     _full = f"{parent_command_name} {candidate}"
                 else:
                     _full = candidate
-                if message_str == _full:
-                    # 完全等于命令名 → 没参数
-                    message_str = ""
+                if message_str.startswith(f"{_full} ") or message_str == _full:
+                    message_str = message_str[len(_full) :].strip()
                     ok = True
                     break
-                elif message_str.startswith(_full):
-                    # 命令名后面无论是空格还是直接连参数都可以
-                    message_str = message_str[len(_full) :].lstrip()
-                    ok = True
-                    break
-
         if not ok:
             return False