diff --git a/src/main/java/com/gunshi/project/hsz/controller/PrePlaceController.java b/src/main/java/com/gunshi/project/hsz/controller/PrePlaceController.java
index 618d77e..10cbe57 100644
--- a/src/main/java/com/gunshi/project/hsz/controller/PrePlaceController.java
+++ b/src/main/java/com/gunshi/project/hsz/controller/PrePlaceController.java
@@ -73,7 +73,7 @@ public class PrePlaceController {
     @Operation(summary = "防治部位修改")
     @PostMapping("/detail/update")
     public R<PrePlaceDetail> detailUpdate(@Validated(Update.class) @RequestBody PrePlaceDetail dto) {
-        boolean result = prePlaceDetailService.updateById(dto);
+        boolean result = prePlaceDetailService.update(dto);
         return R.ok(result ? dto : null);
     }
 
@@ -94,7 +94,7 @@ public class PrePlaceController {
     @Operation(summary = "防治部位删除")
     @GetMapping("/detail/del/{id}")
     public R<Boolean> detailDel(@Schema(name = "id") @PathVariable("id") Serializable id) {
-        boolean b = prePlaceDetailService.removeById(id);
+        boolean b = prePlaceDetailService.deleteById(id);
         return R.ok(b);
     }
 
diff --git a/src/main/java/com/gunshi/project/hsz/service/PrePlaceDetailService.java b/src/main/java/com/gunshi/project/hsz/service/PrePlaceDetailService.java
index ffea140..05b154b 100644
--- a/src/main/java/com/gunshi/project/hsz/service/PrePlaceDetailService.java
+++ b/src/main/java/com/gunshi/project/hsz/service/PrePlaceDetailService.java
@@ -7,6 +7,7 @@ import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.gunshi.project.hsz.entity.so.PrePlacePageSo;
+import com.gunshi.project.hsz.mapper.ByPlanDetailMapper;
 import com.gunshi.project.hsz.mapper.PrePlaceDetailMapper;
 import com.gunshi.project.hsz.mapper.PrePlaceMapper;
 import com.gunshi.project.hsz.model.PrePlace;
@@ -17,6 +18,8 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.io.Serializable;
+
 @Service
 @Slf4j
 @Transactional(rollbackFor = Exception.class)
@@ -25,6 +28,9 @@ public class PrePlaceDetailService extends ServiceImpl<PrePlaceDetailMapper, Pre
     @Autowired
     private PrePlaceMapper prePlaceMapper;
 
+    @Autowired
+    private ByPlanDetailMapper byPlanDetailMapper;
+
     public Page<PrePlaceDetail> pageQuery(PrePlacePageSo pageSo) {
         if(StringUtils.isBlank(pageSo.getPreId())) {
             throw new RuntimeException("请选择防治点");
@@ -46,4 +52,23 @@ public class PrePlaceDetailService extends ServiceImpl<PrePlaceDetailMapper, Pre
         boolean save = save(dto);
         return save;
     }
+
+    public boolean deleteById(Serializable id) {
+        //先在防治计划中查看是否被引用
+        int count = byPlanDetailMapper.selectByPPDI(id);
+        if(count > 0){
+            throw new RuntimeException("该防治点在防治计划中已被选择，不能删除");
+        }
+        boolean b = removeById(id);
+        return b;
+    }
+
+    public boolean update(PrePlaceDetail dto) {
+        int count = byPlanDetailMapper.selectByPPDI(dto.getId());
+        if(count > 0){
+            throw new RuntimeException("该防治点在防治计划中已被选择，不能编辑");
+        }
+        boolean b = updateById(dto);
+        return b;
+    }
 }
diff --git a/src/main/java/com/gunshi/project/hsz/service/PrePlaceService.java b/src/main/java/com/gunshi/project/hsz/service/PrePlaceService.java
index daf6233..6ead1bc 100644
--- a/src/main/java/com/gunshi/project/hsz/service/PrePlaceService.java
+++ b/src/main/java/com/gunshi/project/hsz/service/PrePlaceService.java
@@ -53,8 +53,9 @@ public class PrePlaceService extends ServiceImpl<PrePlaceMapper, PrePlace> {
             if(!StringUtils.isBlank(dto.getPreName())){
                 queryWrapper.like(PrePlaceDetail::getDetailName, dto.getPreName());
             }
+            queryWrapper.eq(PrePlaceDetail::getPreId, prePlace.getId());
             List<PrePlaceDetail> prePlaceDetails = prePlaceDetailMapper.selectList(queryWrapper);
-            if(prePlaceDetails.isEmpty() || !prePlaceDetails.get(0).getPreId().equals(prePlace.getId())){
+            if(prePlaceDetails.isEmpty()){
                 iterator.remove();
                 continue;
             }