diff --git a/src/main/java/com/management/tzcontroller/DeviceInstallController.java b/src/main/java/com/management/tzcontroller/DeviceInstallController.java
index d26668e..5f05aff 100644
--- a/src/main/java/com/management/tzcontroller/DeviceInstallController.java
+++ b/src/main/java/com/management/tzcontroller/DeviceInstallController.java
@@ -76,7 +76,7 @@ public class DeviceInstallController {
             //设备编号
             String deviceName = deviceInstallData.getString("name");
             //创建时间
-            String createTime = deviceInstallData.getString("create_time");
+            String createTime = deviceInstallData.getString("last_modified_time");
 
             //开始查询是否已经执行过该单据
             JSONObject isLogRes = new JSONObject();