diff --git a/casic-device/src/main/java/com/casic/missiles/modular/system/service/impl/BusConfigServiceImpl.java b/casic-device/src/main/java/com/casic/missiles/modular/system/service/impl/BusConfigServiceImpl.java
index 525d9df..646440d 100644
--- a/casic-device/src/main/java/com/casic/missiles/modular/system/service/impl/BusConfigServiceImpl.java
+++ b/casic-device/src/main/java/com/casic/missiles/modular/system/service/impl/BusConfigServiceImpl.java
@@ -105,8 +105,10 @@
                 dto.setRetryTimes(configItems[2]);
                 dto.setPercent(null != configItems[3] ?
                         Float.valueOf(configItems[3]) : null);
-                dto.setCollectInterval(configItems[4]);
-                dto.setCollectCount(configItems[5]);
+                dto.setCollectInterval(
+                        configItems.length>4 ?configItems[4]: null);
+                dto.setCollectCount(
+                        configItems.length>5 ?configItems[5]: null);
                 if (configItems.length == 8) {
                     dto.setIp(configItems[6]);
                     dto.setPort(configItems[7]);