diff --git a/timer/test_external_order.py b/timer/test_external_order.py
index cd0dfed..ab4f48c 100644
--- a/timer/test_external_order.py
+++ b/timer/test_external_order.py
@@ -76,11 +76,60 @@ def down_obj_from_oss(workdir, pid, action):
 
     return obj_filename
 
+
+def checkDownloadFile(pid):
+    mtlfilePath = os.path.join(config.workdir, "print", pid,f"{pid}.mtl")
+    objfilePath = os.path.join(config.workdir, "print", pid,f"{pid}.obj")
+    #读取该笔文件的mtl文件
+    with open(mtlfilePath, 'r') as file:
+        mtlContent = file.read()
+    #检测mtl文件是否正常
+    if mtlContent == "":
+        return False
+    #判断mtl 包含几个 newmtl
+    newmtlCount = mtlContent.count('newmtl')
+    if newmtlCount > 1:
+        return False 
+    
+    #判断mtlContent是否包含 {pid}Tex1.jpg
+    if f'{pid}Tex1.jpg' not in mtlContent:
+        return False
+
+    #检测obj文件 里 是否包含 o {pid},
+    isContain = False
+    with open(objfilePath, 'r') as file:
+        for line in file:
+            if line.startswith(f'o {pid}'):
+                isContain = True
+                print(f'{pid}的obj文件检测没问题')
+                break
+
+    if isContain == False:
+        print(f'{pid}的obj文件检测出现问题了， 没有找到o {pid} 的行')
+        return False
+
+
+    return isContain
+
+    
 #加载obj文件
 def reload_obj(pid,order_ids):
     
     #下载obj文件
     down_obj_from_oss(config.workdir, pid, "print")
+    #检测mtl 文件是否正常，
+    isNormal = checkDownloadFile(pid)
+    if isNormal == False:
+        print(f'{pid}的mtl文件检测出现问题，不执行该笔任务,调用取消的接口')
+        for order_id in order_ids:
+            url = f"https://mp.api.suwa3d.com/api/order/cancelExternalOrder?id={order_id}&typename=system"
+            response = requests.get(url)
+            response = response.json()
+            if response['code'] != 1000:
+                continue
+            print(f'取消订单{order_id}成功')
+        return
+
     for order_id in order_ids:
         print(order_id)
         #url 请求