diff --git a/hiviewdfx/hiappevent/include/hiappevent/hiappevent_event.h b/hiviewdfx/hiappevent/include/hiappevent/hiappevent_event.h
index 63dc8cf01461d7d464400904b94cff1dfc51f386..06f186ed5ad34d88e25247429d918dc164c83242 100644
--- a/hiviewdfx/hiappevent/include/hiappevent/hiappevent_event.h
+++ b/hiviewdfx/hiappevent/include/hiappevent/hiappevent_event.h
@@ -160,6 +160,14 @@ extern "C" {
  */
 #define EVENT_APP_HICOLLIE "APP_HICOLLIE"
 
+/**
+ * @brief app killed event.
+ *
+ * @since 20
+ * @version 1.0
+ */
+#define EVENT_APP_KILLED "APP_KILLED"
+
 /**
  * @brief OS domain.
  *