diff --git a/mes/hd/nladmin-system/src/main/java/org/nl/pda/pdm/service/impl/PdmWorkTaskServiceImpl.java b/mes/hd/nladmin-system/src/main/java/org/nl/pda/pdm/service/impl/PdmWorkTaskServiceImpl.java
index 93405082..e7d63663 100644
--- a/mes/hd/nladmin-system/src/main/java/org/nl/pda/pdm/service/impl/PdmWorkTaskServiceImpl.java
+++ b/mes/hd/nladmin-system/src/main/java/org/nl/pda/pdm/service/impl/PdmWorkTaskServiceImpl.java
@@ -264,6 +264,9 @@ public class PdmWorkTaskServiceImpl implements PdmWorkTaskService {
                     throw new PdaRequestException("当前工令工序任务状态不为检查确认！");
                 }
 
+                if(StrUtil.isEmpty(device_code)){
+                    throw new PdaRequestException("设备不能为空！");
+                }
                 JSONObject device = WQLObject.getWQLObject("em_bi_deviceinfo").query("device_code = '" + device_code + "'").uniqueResult(0);
 
                 if (!work_task.getString("workprocedure_code").equals(device.getString("workprocedure_code"))) {