diff --git a/src/main/java/com/xydl/cac/service/impl/ModevTypeServiceImpl.java b/src/main/java/com/xydl/cac/service/impl/ModevTypeServiceImpl.java
index 2239ec0..0c09538 100644
--- a/src/main/java/com/xydl/cac/service/impl/ModevTypeServiceImpl.java
+++ b/src/main/java/com/xydl/cac/service/impl/ModevTypeServiceImpl.java
@@ -6,6 +6,7 @@ import com.xydl.cac.service.ModevTypeService;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.CollectionUtils;
 
 import javax.annotation.Resource;
 import java.util.List;
@@ -28,7 +29,7 @@ public class ModevTypeServiceImpl implements ModevTypeService {
     public ModevType add(ModevType item) throws Exception {
         item.setId(null);
         List<ModevType> byMc = repository.findByMc(item.getMc());
-        if (!byMc.isEmpty()) {
+        if (!CollectionUtils.isEmpty(byMc)) {
             throw new Exception("该监测装置类型已存在");
         }
         return repository.save(item);
@@ -37,8 +38,12 @@ public class ModevTypeServiceImpl implements ModevTypeService {
     @Override
     public void update(ModevType item) throws Exception {
         List<ModevType> byMc = repository.findByMc(item.getMc());
-        if (!byMc.isEmpty()) {
-            throw new Exception("该监测装置类型已存在");
+        if (!CollectionUtils.isEmpty(byMc)) {
+            for (ModevType it : byMc) {
+                if (it.getId() != item.getId()) {
+                    throw new Exception("该监测装置类型已存在");
+                }
+            }
         }
         repository.save(item);
     }