diff --git a/replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/loader2/TaskAffinityStates.java b/replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/loader2/TaskAffinityStates.java
index eb55ad55..dab7e6e1 100644
--- a/replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/loader2/TaskAffinityStates.java
+++ b/replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/loader2/TaskAffinityStates.java
@@ -96,6 +96,10 @@ HashMap<String, PluginContainers.ActivityState> getStates(ActivityInfo ai) {
                 e.printStackTrace();
             }
 
+            // index在坑位查找失败时会返回-1，导致这里越界
+            // 此处增加修越界检查
+            index = Math.max(0, Math.min(mLaunchModeStates.length - 1, index));
+
             LaunchModeStates states = mLaunchModeStates[index];
             if (states != null) {
                 return states.getStates(ai.launchMode, ai.theme);