diff --git a/inventory-backend/app/services/print/label_service.py b/inventory-backend/app/services/print/label_service.py
index 14488f6..a384d02 100644
--- a/inventory-backend/app/services/print/label_service.py
+++ b/inventory-backend/app/services/print/label_service.py
@@ -133,7 +133,7 @@ class LabelPrintService:
         | [QR Code] (15mm) |  名: XXXXXX      |
         |                  |  规: XXXXXX      |
         | SKU: XXXXX(大/粗)|  属: XXXXXX      |
-        | 库: XXXXX (中/粗)|  SN: XXXXXX      |
+        | 库: XXXXX (中/粗)|                  |
         ---------------------------------------
         """
         # 1. 创建画布
@@ -157,24 +157,6 @@ class LabelPrintService:
         typ = str(data.get('material_type', '') or '')
         attr = f"{cat}/{typ}" if (cat or typ) else "-"
 
-        # 底部编号逻辑
-        bottom_val = ""
-        bottom_label = "NO"
-        if data.get('print_no'):
-            bottom_val = str(data.get('print_no'))
-            l_type = data.get('print_label', '')
-            bottom_label = 'SN' if l_type == '序' else 'BN' if l_type == '批' else 'NO'
-        elif data.get('serial_number'):
-            bottom_label = "SN"
-            bottom_val = str(data.get('serial_number'))
-        elif data.get('batch_number'):
-            bottom_label = "BN"
-            bottom_val = str(data.get('batch_number'))
-        else:
-            bottom_val = sku_code
-
-        bottom_text_full = f"{bottom_label}:{bottom_val}"
-
         # ==================== 绘制区域划分 ====================
 
         # --- A. 左侧区域 (二维码 + SKU + 库位) ---
@@ -223,7 +205,7 @@ class LabelPrintService:
             stroke_fill='black'
         )
 
-        # --- B. 右侧区域 (名称、规格、属性、编号) ---
+        # --- B. 右侧区域 (名称、规格、属性) ---
 
         # 右侧起始 X
         right_start_x = LabelPrintService.MARGIN_LEFT + LabelPrintService.QR_SIZE_PX + LabelPrintService.GAP_COLUMNS
@@ -251,12 +233,6 @@ class LabelPrintService:
         current_right_y = LabelPrintService.draw_text_wrap(
             d, f"属:{attr}", right_start_x, current_right_y, font_text, right_max_width, line_spacing=LINE_SPACING
         )
-        current_right_y += LINE_SPACING
-
-        # 4. 序列号/批号
-        LabelPrintService.draw_text_wrap(
-            d, bottom_text_full, right_start_x, current_right_y, font_text, right_max_width, line_spacing=LINE_SPACING
-        )
 
         return img
 
@@ -321,4 +297,4 @@ class LabelPrintService:
 
 
 if __name__ == "__main__":
-    pass
+    pass
\ No newline at end of file
diff --git a/inventory-backend/app/services/print/printer_config.json b/inventory-backend/app/services/print/printer_config.json
index fd87d21..68abbef 100644
--- a/inventory-backend/app/services/print/printer_config.json
+++ b/inventory-backend/app/services/print/printer_config.json
@@ -1,6 +1,6 @@
 {
   "label_printer": {
-    "ip": "192.168.9.14",
+    "ip": "192.168.9.78",
     "port": 9100
   },
   "network_printer": {