diff --git a/custom_components/sigmesh_gateway/provisioning.py b/custom_components/sigmesh_gateway/provisioning.py
index 056cce4..bbb9ded 100644
--- a/custom_components/sigmesh_gateway/provisioning.py
+++ b/custom_components/sigmesh_gateway/provisioning.py
@@ -145,9 +145,14 @@ class ProvisioningManager:
         self._devices = {}
         self._scan_result = []
 
-        # 发送扫描命令
-        # 注意：实际扫描由网关自动广播触发，这里只需等待设备上报
-        _LOGGER.info("开始扫描设备，等待设备上报...")
+        # 发送扫描命令：AT+PROV=SCAN
+        # 网关会开始扫描周围的配网设备，设备响应后通过串口上报
+        try:
+            await self.serial_reader.write_command("AT+PROV=SCAN")
+            _LOGGER.info("已发送扫描命令，等待设备响应...")
+        except Exception as e:
+            _LOGGER.error("发送扫描命令失败：%s", e)
+            self._set_state(ProvState.PROV_FAILED)
 
     async def start_provisioning(self, device_address: str) -> None:
         """开始配网指定设备。