diff --git a/sf_manufacturing/wizard/sale_order_cancel.py b/sf_manufacturing/wizard/sale_order_cancel.py
index fc641945..6a76f687 100644
--- a/sf_manufacturing/wizard/sale_order_cancel.py
+++ b/sf_manufacturing/wizard/sale_order_cancel.py
@@ -211,6 +211,7 @@ class SFSaleOrderCancelLine(models.TransientModel):
         d = 0
         # 在领料单处只进行一次
         flag = True
+        program_list = []
         for mo in manufacturing_orders:
             # 添加制造订单本身
             d += 1
@@ -288,7 +289,7 @@ class SFSaleOrderCancelLine(models.TransientModel):
                         'sequence': sequence,
                         'category': '制造',
                         'doc_name': '工单',
-                        'doc_number': workorder.name,
+                        'doc_number': f'{mo.name}-{workorder.name}',
                         'line_number': g,
                         'operation_type': '',
                         'product_name': f'[{mo.product_id.default_code}] {mo.product_id.name}',
@@ -387,9 +388,14 @@ class SFSaleOrderCancelLine(models.TransientModel):
                     'doc_state': cloud_programming['programming_state'],
                     'cancel_reason': ''
                 }
-                lines.append(self.create(vals))
-                sequence += 1
-        return lines
+                program_list.append(self.create(vals))
+        unique_lines = {}
+        for line in program_list:
+            doc_number = line.doc_number
+            if doc_number not in unique_lines:
+                unique_lines[doc_number] = line
+
+        return lines + list(unique_lines.values())
 
         # unique_lines = {}
         # for line in lines: