diff --git a/yuthon_property_approval/models/property_lease_renewal.py b/yuthon_property_approval/models/property_lease_renewal.py
index 572c5447b..f7ebb0fca 100644
--- a/yuthon_property_approval/models/property_lease_renewal.py
+++ b/yuthon_property_approval/models/property_lease_renewal.py
@@ -96,7 +96,17 @@ class PropertyLeaseRenewal(models.Model):
                 if not contract_actual_end_date or contract_actual_end_date >= month_end_date:
                     rec.hide = True
                     origin_contract = rec.contract_id
-                    original_lessee_id = origin_contract.lessee_id.id if origin_contract.lessee_id else False
+                    first_alteration = self.env['lessee.alteration.line'].search(
+                        [('contract_id', '=', origin_contract.id)],
+                        order='end_date asc', limit=1
+                    )
+                    if first_alteration:
+                        original_lessee_id = first_alteration.lessee_id.id
+                        rec.display_name = first_alteration.lessee_id.name
+                    else:
+                        original_lessee_id = origin_contract.lessee_id.id if origin_contract.lessee_id else False
+                        rec.original_lessee_id = origin_contract.lessee_id.name if origin_contract.lessee_id else False
+
                     version_str = origin_contract.version.lstrip('V')
                     main_version = version_str.split('.')[0]
                     new_main_version = int(main_version) + 1
@@ -109,18 +119,30 @@ class PropertyLeaseRenewal(models.Model):
                         contract_to_unlink.unlink()
                     # 新增新承租方的物业合同信息
                     property_contract_list = []
-                    if original_lessee_id and origin_contract.id and rec.effective_date and origin_contract.contact_state == 'ing':
-                        origin_contract.write({
-                            'version': new_version,
-                            'lessee_id': rec.new_lessee_id.id
+                    origin_contract.write({
+                        'version': new_version,
+                        'lessee_id': rec.new_lessee_id.id
+                    })
+                    # 新增承租方变更明细
+                    origin_contract.is_lessee = True
+                    domain = [
+                        ('contract_id', '=', origin_contract.id),
+                        ('end_date', '=', rec.effective_date - relativedelta(days=1))
+                    ]
+                    existing_line = self.env['lessee.alteration.line'].search(domain, limit=1)
+                    if existing_line:
+                        existing_line.write({
+                            'lessee_id': original_lessee_id,
+                            'end_date': rec.effective_date - relativedelta(days=1)
                         })
-                        origin_contract.is_lessee = True
+                    else:
                         self.env['lessee.alteration.line'].create({
                             'contract_id': origin_contract.id,
                             'lessee_id': original_lessee_id,
                             'start_date': origin_contract.actual_start_time,
                             'end_date': rec.effective_date - relativedelta(days=1),
                         })
+
                     origin_contract._compute_contract_count()
                     property_contract_list.append([0, 0, {
                         'tenant_id': rec.new_lessee_id.id,