diff --git a/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/enums/ErrorCodeConstants.java b/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/enums/ErrorCodeConstants.java
index f237c60..fe9d690 100644
--- a/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/enums/ErrorCodeConstants.java
+++ b/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/enums/ErrorCodeConstants.java
@@ -72,6 +72,7 @@ public interface ErrorCodeConstants {
     ErrorCode PLAN_RATE_EXISTS = new ErrorCode(1-200-200-001, "养护频次已存在");
     ErrorCode PLAN_RATE_LEVEL_ID_DUPLICATE = new ErrorCode(1-200-200-002, "养护等级重复");
     ErrorCode PLAN_RATE_NOT_EXISTS = new ErrorCode(1-200-200-002, "未配置计划频次");
+    ErrorCode PLAN_RATE_DETAIL_EXISTS = new ErrorCode(1-200-200-003, "计划频次已存在");
 
     ErrorCode MATERIAL_TYPE_NOT_EXISTS = new ErrorCode(1-100-004-001, "物料类型不存在");
     ErrorCode MATERIAL_TYPE_MANAGER_NOT_EXISTS = new ErrorCode(1-100-004-002, "耗材类别管理不存在");
diff --git a/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/enums/PlanConstants.java b/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/enums/PlanConstants.java
index 96663d4..aeb4fb4 100644
--- a/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/enums/PlanConstants.java
+++ b/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/enums/PlanConstants.java
@@ -7,4 +7,8 @@ public class PlanConstants {
 
     /*周期-cycle_id_type-字典key*/
     public static final String CYCLE_ID_TYPE = "cycle_id_type";
+
+    /*养护级别-字典key*/
+    public static final String CONSERVE_LEVEL = "conserve_level";
+
 }
diff --git a/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/planrate/PlanRateServiceImpl.java b/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/planrate/PlanRateServiceImpl.java
index 7c372dc..65def1d 100644
--- a/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/planrate/PlanRateServiceImpl.java
+++ b/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/planrate/PlanRateServiceImpl.java
@@ -4,6 +4,9 @@ import cn.hutool.core.date.DateUtil;
 import cn.hutool.core.util.RandomUtil;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
+import com.zteits.urbanops.framework.common.biz.system.dict.DictDataCommonApi;
+import com.zteits.urbanops.framework.common.biz.system.dict.dto.DictDataRespDTO;
+import com.zteits.urbanops.framework.common.exception.ServiceException;
 import com.zteits.urbanops.framework.common.util.object.BeanUtils;
 import com.zteits.urbanops.framework.security.core.util.SecurityFrameworkUtils;
 import com.zteits.urbanops.module.garden.dal.dataobject.planrate.PlanRateDetailDO;
@@ -24,6 +27,7 @@ import com.zteits.urbanops.module.garden.dal.mysql.planrate.PlanRateMapper;
 
 import static com.zteits.urbanops.framework.common.exception.util.ServiceExceptionUtil.exception;
 import static com.zteits.urbanops.module.garden.enums.ErrorCodeConstants.*;
+import static com.zteits.urbanops.module.garden.enums.PlanConstants.CONSERVE_LEVEL;
 
 /**
  * 计划频次 Service 实现类
@@ -40,6 +44,9 @@ public class PlanRateServiceImpl implements PlanRateService {
     @Resource
     private PlanRateDetailMapper planRateDetailMapper;
 
+    @Resource
+    private DictDataCommonApi dictDataCommonApi;
+
     @Transactional(rollbackFor = Exception.class)
     @Override
     public Long createPlanRate(PlanRateSaveReqVO createReqVO) {
@@ -75,6 +82,7 @@ public class PlanRateServiceImpl implements PlanRateService {
             detailDO.setUpdater(userName);
             detailDO.setUpdateTime(now);
             list.add(detailDO);
+            validatePlanRateDetailExists(createReqVO.getBusiLine(), createReqVO.getPlanTypeId(), detail.getLevelId());
         });
         /*2.插入频次明细*/
         planRateDetailMapper.insertBatch(list);
@@ -112,6 +120,7 @@ public class PlanRateServiceImpl implements PlanRateService {
             detailDO.setUpdater(userName);
             detailDO.setUpdateTime(now);
             list.add(detailDO);
+            validatePlanRateDetailExists(updateReqVO.getBusiLine(), updateReqVO.getPlanTypeId(), detail.getLevelId());
         });
         /*3.插入频次明细*/
         planRateDetailMapper.insertBatch(list);
@@ -146,6 +155,22 @@ public class PlanRateServiceImpl implements PlanRateService {
         }
     }
 
+    /**
+     * 养护明细是否重复
+     * @param planTypeId 养护类型
+     * @param busiLine 业务线
+     * @param levelId 道路等级
+     */
+    private void validatePlanRateDetailExists(String busiLine, Integer planTypeId, Integer levelId) {
+        QueryWrapper<PlanRateDetailDO> sql = new QueryWrapper<>();
+        sql.lambda().eq(PlanRateDetailDO::getPlanTypeId, planTypeId).eq(PlanRateDetailDO::getBusiLine, busiLine)
+                .eq(PlanRateDetailDO::getLevelId, levelId);
+        if (planRateDetailMapper.selectCount(sql) > 0) {
+            DictDataRespDTO dictData = dictDataCommonApi.getDictData(CONSERVE_LEVEL, levelId.toString());
+            throw new ServiceException(PLAN_RATE_DETAIL_EXISTS.getCode(), "养护等级[" + dictData.getLabel() + "]已存在");
+        }
+    }
+
     @Override
     public PlanRateDO getPlanRate(Long id) {
         return planRateMapper.selectById(id);