diff --git a/yuthon_property_approval/models/inherit_yuthon_property.py b/yuthon_property_approval/models/inherit_yuthon_property.py
index 0a6ea34d0..d4e1a0a24 100644
--- a/yuthon_property_approval/models/inherit_yuthon_property.py
+++ b/yuthon_property_approval/models/inherit_yuthon_property.py
@@ -1551,6 +1551,34 @@ class PropertyDepositList(models.Model):
             })
             rec.is_push = True
 
+    def delete_duplicate_deposit(self):
+        """删除重复押金：同一合同 + 同一保证金类型只保留最早一条，删除其余"""
+        deposits = self.env['property.deposit.list'].search([
+            ('contract_id', '!=', False),
+            ('posit_type', '!=', False),
+        ])
+        seen = {}
+        to_delete = self.env['property.deposit.list']
+        for dep in deposits.sorted(key=lambda d: (d.contract_id.id, d.posit_type, d.id)):
+            key = (dep.contract_id.id, dep.posit_type)
+            if key in seen:
+                to_delete |= dep
+            else:
+                seen[key] = dep.id
+        count = len(to_delete)
+        if to_delete:
+            to_delete.unlink()
+        return {
+            'type': 'ir.actions.client',
+            'tag': 'display_notification',
+            'params': {
+                'title': '删除重复押金',
+                'message': f'已删除 {count} 条重复押金记录' if count else '没有重复的押金记录',
+                'type': 'success' if count else 'info',
+                'sticky': False,
+            },
+        }
+
 # 管理费
 class PropertyManagementList(models.Model):
     _inherit = 'property.management.list'
diff --git a/yuthon_property_approval/views/inherit_yuthon_property_views.xml b/yuthon_property_approval/views/inherit_yuthon_property_views.xml
index d8c7fd8f3..8568815e1 100644
--- a/yuthon_property_approval/views/inherit_yuthon_property_views.xml
+++ b/yuthon_property_approval/views/inherit_yuthon_property_views.xml
@@ -180,6 +180,7 @@
             <xpath expr="//tree" position="inside">
                     <header>
                         <button name="batch_push_deposit" type="object" string="推送" class="oe_highlight"/>
+                        <button name="delete_duplicate_deposit" type="object" string="删除重复押金" confirm="确定要删除重复的押金记录吗？"/>
                         <button name="unlink" string="删除" type="object" icon="fa-trash" groups="base.group_system" confirm="确定要删除选中的记录吗？"/>
                     </header>
             </xpath>