diff --git a/message_pb.proto b/message_pb.proto
index abe79c7..3127a70 100644
--- a/message_pb.proto
+++ b/message_pb.proto
@@ -35,12 +35,6 @@ message Pub {
     string content = 2;
 }
 
-// 命令，不需要返回
-message Command {
-    string topic = 1;
-    string content = 2;
-}
-
 // 需要响应; 系统内部的调用采用: $sys_前缀
 message AsyncRequest {
     string method = 1;