diff --git a/das/src/main/java/com/das/modules/equipment/service/impl/SysEquipmentServiceImpl.java b/das/src/main/java/com/das/modules/equipment/service/impl/SysEquipmentServiceImpl.java
index 7d9bb92d..e960216d 100644
--- a/das/src/main/java/com/das/modules/equipment/service/impl/SysEquipmentServiceImpl.java
+++ b/das/src/main/java/com/das/modules/equipment/service/impl/SysEquipmentServiceImpl.java
@@ -98,7 +98,7 @@ public class SysEquipmentServiceImpl implements SysEquipmentService {
         SysUserVo sysUserVo = (SysUserVo) StpUtil.getTokenSession().get(SessionUtil.SESSION_USER_KEY);
         SysEquipmentVo oldSysEquipment = sysEquipmentMapper.queryEquipmentInfoByCode(sysEquipmentDto.getCode());
         // 判断设备编码是否存在
-        if (sysEquipmentMapper.queryEquipmentByCode(sysEquipment.getCode()) > 0) {
+        if (oldSysEquipment != null && sysEquipmentMapper.queryEquipmentByCode(sysEquipment.getCode()) > 0) {
             if (!oldSysEquipment.getId().equals(sysEquipmentDto.getId())) {
                 throw new RuntimeException("设备编码已存在");
             }