diff --git a/yuthon_hr_attendance/models/go_approval.py b/yuthon_hr_attendance/models/go_approval.py
index c3672bffc..f316de9cd 100644
--- a/yuthon_hr_attendance/models/go_approval.py
+++ b/yuthon_hr_attendance/models/go_approval.py
@@ -57,21 +57,8 @@ class GoApprovals(models.Model):
         for rec in self:
             if not rec.start_date or not rec.end_date or not rec.employee_ids:
                 continue
-            # 获取当前记录关联的 workflow record，判断自身状态
-            # 草稿状态(start)或已回收的不参与冲突判断
-            self_workflow = self.env['soong.workflow.record'].search([
-                ('res_model', '=', 'go.approval'),
-                ('res_id', '=', rec.id),
-                ('reclaim_state', '=', False),
-            ], limit=1)
-            # 自身是草稿且尚未进入审批，不做校验（保存草稿时不拦截）
-            # 只有转交(审批中/结束)时才校验
-            if self_workflow and self_workflow.approve_state == 'start':
-                continue
-
             for employee in rec.employee_ids:
                 # 查找同一员工其他外出申请中时间段有交叉的记录
-                # 通过 workflow record 过滤：只算审批中(pending)或结束(end)的
                 candidate_ids = self.env['go.approval'].search([
                     ('id', '!=', rec.id),
                     ('employee_ids', 'in', employee.id),
@@ -80,7 +67,7 @@ class GoApprovals(models.Model):
                 ]).ids
                 if not candidate_ids:
                     continue
-                # 过滤掉草稿和已回收的
+                # 只有审批中(pending)或已结束(end)的才算冲突，草稿和已回收的不算
                 valid_workflow = self.env['soong.workflow.record'].search([
                     ('res_model', '=', 'go.approval'),
                     ('res_id', 'in', candidate_ids),
@@ -95,6 +82,35 @@ class GoApprovals(models.Model):
     def _get_default_name_title(self):
         return self._description if self._description else self._name
 
+    def btn_exec_action(self):
+        """重写转交方法，在转交时校验时间段冲突"""
+        cx = self.env.context.copy() or {}
+        btn_key = cx.get('btn_key', '')
+        # 只在转交时做校验
+        btn_rec = self.env['soong.workflow.node.button'].search([('btn_key', '=', btn_key)], limit=1)
+        if btn_rec and btn_rec.name == '转交':
+            if self.start_date and self.end_date and self.employee_ids:
+                for employee in self.employee_ids:
+                    candidate_ids = self.env['go.approval'].search([
+                        ('id', '!=', self.id),
+                        ('employee_ids', 'in', employee.id),
+                        ('start_date', '<=', self.end_date),
+                        ('end_date', '>=', self.start_date),
+                    ]).ids
+                    if candidate_ids:
+                        valid_workflow = self.env['soong.workflow.record'].search([
+                            ('res_model', '=', 'go.approval'),
+                            ('res_id', 'in', candidate_ids),
+                            ('reclaim_state', '=', False),
+                            ('approve_state', 'in', ['pending', 'end']),
+                        ])
+                        if valid_workflow:
+                            raise ValidationError(
+                                f"员工【{employee.name}】在 {self.start_date} 至 {self.end_date} 期间已有外出申请（审批中或已结束），相同时间段内不能重复创建。"
+                            )
+        return super().btn_exec_action()
+
+
     name_title = fields.Char(default=_get_default_name_title)
     self_users_ids = fields.Many2many('res.users', string="当前经办人", default=lambda self: [(6, 0, [self.env.user.id])])