diff --git a/postdischarge-manage/src/main/java/com/xinelu/manage/service/aiob/impl/AIOBServiceImpl.java b/postdischarge-manage/src/main/java/com/xinelu/manage/service/aiob/impl/AIOBServiceImpl.java
index 6e62d009..65061e73 100644
--- a/postdischarge-manage/src/main/java/com/xinelu/manage/service/aiob/impl/AIOBServiceImpl.java
+++ b/postdischarge-manage/src/main/java/com/xinelu/manage/service/aiob/impl/AIOBServiceImpl.java
@@ -728,7 +728,10 @@ public class AIOBServiceImpl implements IAIOBService {
 		if (StringUtils.isNotBlank(currentQuestion)) {
 			for (int i = 0; i < speechList.size(); i++) {
 				if (StringUtils.equals(speechList.get(i).getContextText(), currentQuestion)) {
-					return speechList.get(i+1);
+					if (speechList.size() >= i + 1)
+						return speechList.get(i + 1);
+					else
+						return null;
 				}
 			}
 		}