diff --git a/src/mqtt_client_wrapper.cpp b/src/mqtt_client_wrapper.cpp
index f659018..7792c86 100644
--- a/src/mqtt_client_wrapper.cpp
+++ b/src/mqtt_client_wrapper.cpp
@@ -284,16 +284,37 @@ static void on_mqtt_message_received(const std::string& topic, const std::string
     {
         auto j = nlohmann::json::parse(message);
 
-        // 必须是 request
-        if (!j.contains("type") || j["type"] != "request")
+        LOG_INFO("[MQTT] Received message on [" + topic + "]");
+        LOG_INFO("[MQTT] Payload: " + j.dump(-1));
+
+        // ===============================
+        // 1. vehicle_ctrl：放宽协议限制
+        // ===============================
+        if (topic == g_app_config.mqtt.topics.vehicle_ctrl)
         {
+            // vehicle_ctrl 只要求有 command
+            if (!j.contains("command"))
+            {
+                LOG_WARN("[MQTT] vehicle_ctrl missing 'command'");
+                return;
+            }
+
+            handle_vehicle_ctrl_request(j);
             return;
         }
 
-        LOG_INFO("[MQTT] Received request on [" + topic + "]");
-        LOG_INFO("[MQTT] Payload: " + j.dump(-1));
+        // ==========================================
+        // 2. 其他 topic：必须是 type=request
+        // ==========================================
+        if (!j.contains("type") || j["type"] != "request")
+        {
+            // 非 request 的消息直接忽略
+            return;
+        }
 
-        // 根据 topic 分发
+        // ===============================
+        // 3. 按 topic 分发
+        // ===============================
         if (topic == g_app_config.mqtt.topics.video_down)
         {
             handle_video_down_request(j);
@@ -306,10 +327,6 @@ static void on_mqtt_message_received(const std::string& topic, const std::string
         {
             handle_record_play_request(j);
         }
-        else if (topic == g_app_config.mqtt.topics.vehicle_ctrl)
-        {
-            handle_vehicle_ctrl_request(j);
-        }
         else
         {
             LOG_WARN("[MQTT] Unknown topic: " + topic);