diff --git a/apps/em/serializers.py b/apps/em/serializers.py
index dd6c88ec..0278349a 100644
--- a/apps/em/serializers.py
+++ b/apps/em/serializers.py
@@ -4,6 +4,7 @@ from apps.system.models import Dept
 from apps.utils.constants import EXCLUDE_FIELDS, EXCLUDE_FIELDS_BASE
 from rest_framework import serializers
 from rest_framework.exceptions import ValidationError
+from rest_framework.exceptions import ParseError
 
 
 class EcateSerializer(CustomModelSerializer):
@@ -23,6 +24,14 @@ class EquipmentSerializer(CustomModelSerializer):
     full_name = serializers.SerializerMethodField()
 
     def validate(self, attrs):
+        number = attrs.get("number", None)
+        if number:
+            eq = Equipment.objects.get_queryset(all=True).filter(number=number).first()
+            if eq and eq.is_deleted:
+                eq.is_deleted = False
+                eq.save(update_fields=["is_deleted"])
+                raise ParseError(f"{number}已存在并恢复")
+
         mgroup = attrs.get("mgroup", None)
         if mgroup:
             attrs["belong_dept"] = mgroup.belong_dept
diff --git a/apps/utils/models.py b/apps/utils/models.py
index 2e5e6bad..3a18d461 100755
--- a/apps/utils/models.py
+++ b/apps/utils/models.py
@@ -6,6 +6,7 @@ from django.db.models.query import QuerySet
 from apps.utils.snowflake import idWorker
 from django.db import IntegrityError
 from django.db import transaction
+from rest_framework.exceptions import ParseError
 
 # 自定义软删除查询基类
 
@@ -63,18 +64,18 @@ class ParentModel(models.Model):
         link = []
         if self.parent is not None:
             if self.parent == self:
-                raise Exception(f'{self.__class__.__name__}-{self.id}-存在循环引用')
+                raise ParseError(f'{self.__class__.__name__}-{self.id}-存在循环引用')
             link = [self.parent.id] # 一级
             if self.parent.parent is not None: # 二级
                 if self.parent.parent == self:
-                    raise Exception(f'{self.__class__.__name__}-{self.id}-存在循环引用')
+                    raise ParseError(f'{self.__class__.__name__}-{self.id}-存在循环引用')
                 link.insert(0, self.parent.parent.id) 
                 if self.parent.parent.parent is not None: # 三级
                     if self.parent.parent.parent == self:
-                        raise Exception(f'{self.__class__.__name__}-{self.id}-存在循环引用')
+                        raise ParseError(f'{self.__class__.__name__}-{self.id}-存在循环引用')
                     link.insert(0, self.parent.parent.parent.id)
                     if self.parent.parent.parent.parent is not None:
-                        raise Exception(f'{self.__class__.__name__}-{self.id}-最多支持四级')
+                        raise ParseError(f'{self.__class__.__name__}-{self.id}-最多支持四级')
         return link
 
     def handle_parent(self):