diff --git a/iot-access/access-api/src/main/java/com/njcn/access/enums/AccessResponseEnum.java b/iot-access/access-api/src/main/java/com/njcn/access/enums/AccessResponseEnum.java
index 939505f..d96bfeb 100644
--- a/iot-access/access-api/src/main/java/com/njcn/access/enums/AccessResponseEnum.java
+++ b/iot-access/access-api/src/main/java/com/njcn/access/enums/AccessResponseEnum.java
@@ -14,7 +14,8 @@ public enum AccessResponseEnum {
      * A0301 ~ A0399 用于用户模块的枚举
      * <p>
      */
-    NDID_NO_FIND("A0301", "此设备未录入或已注册!"),
+    NDID_NO_FIND("A0301", "此设备未录入!"),
+    NDID_SAME_STEP("A0301", "此设备已注册!"),
 
     MISSING_CLIENT("A0302","设备客户端不在线!"),
     MODEL_REPEAT("A0302", "模板存在,请勿重复录入!"),
diff --git a/iot-access/access-boot/src/main/java/com/njcn/access/service/impl/CsDeviceServiceImpl.java b/iot-access/access-boot/src/main/java/com/njcn/access/service/impl/CsDeviceServiceImpl.java
index e86080c..247c52b 100644
--- a/iot-access/access-boot/src/main/java/com/njcn/access/service/impl/CsDeviceServiceImpl.java
+++ b/iot-access/access-boot/src/main/java/com/njcn/access/service/impl/CsDeviceServiceImpl.java
@@ -113,6 +113,13 @@ public class CsDeviceServiceImpl implements ICsDeviceService {
             csLogsFeignClient.addUserLog(logDto);
             throw new BusinessException(AccessResponseEnum.NDID_NO_FIND);
         }
+        //判断是否重复注册
+        if (!Objects.isNull(csEquipmentDeliveryVO.getNdid()) && Objects.equals(type,csEquipmentDeliveryVO.getProcess())){
+            logDto.setResult(0);
+            logDto.setFailReason(AccessResponseEnum.NDID_SAME_STEP.getMessage());
+            csLogsFeignClient.addUserLog(logDto);
+            throw new BusinessException(AccessResponseEnum.NDID_SAME_STEP);
+        }
         //2.判断设备是否是直连设备
         SysDicTreePO sysDicTreePo = dictTreeFeignClient.queryById(csEquipmentDeliveryVO.getDevType()).getData();
         if (Objects.isNull(sysDicTreePo)){