diff --git "a/design/dfx/\344\272\213\344\273\266\350\256\276\350\256\241.md" "b/design/dfx/\344\272\213\344\273\266\350\256\276\350\256\241.md"
index 696daf4564ae462f85968d2d66ab569bfbe91efc..67b502a8660c1c34dd4cbef035d032229769ab1f 100644
--- "a/design/dfx/\344\272\213\344\273\266\350\256\276\350\256\241.md"
+++ "b/design/dfx/\344\272\213\344\273\266\350\256\276\350\256\241.md"
@@ -43,12 +43,24 @@
 ```
 ### 1.4 DRM
 ```json
+DRM_COMMON_FAILURE
 {
     APP_NAME: string,
     INSTANCE_ID: string,
     ERROR_CODE: int32, // 与drm错误码维持一致
     ERROR_MESG: string,
+    EXTRA_MESG: string, // 处理响应失败时填写响应字符串
+}
 
+DRM_DECRYPTION_FAILURE
+{
+    APP_NAME: string,
+    INSTANCE_ID: string,
+    ERROR_CODE: int32,
+    ERROR_MESG: string,
+    DECRYPT_ALGO: string, // 解密算法
+    DECRYPT_KEYID: string,
+    DECRYPT_IV: string,
 }
 ```
 ## 2. 统计事件
@@ -139,4 +151,67 @@
     stopReason: int8, // 停止原因枚举
     // 性能信息
     startLatency: int32,
-}
\ No newline at end of file
+}
+```
+
+### 2.4 DRM mediaEvent
+```json
+{
+    APP_NAME: string,
+    INSTANCE_ID: string,
+    ERROR_CODE: int32,
+    ERROR_MESG: string, // 描述为DRM统计事件
+    DECRYPT_TIMES: uint32,
+    DECRYPT_AVG_SIZE: uint32 // KB
+    DECRYPT_AVG_DURATION: uint32 // ms
+    DECRYPT_MAX_SIZE: uint32 // KB
+    DECRYPT_MAX_DURATION: uint32 // ms
+}
+```
+
+## 3. 行为事件
+### 3.1 DRM
+```json
+DRM_SERVICE_INFO
+{
+    MODULE: string,
+    TIME: uint32,
+    SERVICE_NAME: string,
+    ACTION: string, // 启动或退出
+    MEMORY: uint32, // kb
+}
+
+DRM_LICENSE_DOWNLOWD_INFO
+{
+    MODULE: string,
+    TIME: uint32,
+    APP_NAME: string,
+    INSTANCE_ID: string,
+    DRM_NAME: string,
+    DRM_UUID: string,
+    CLIENT_VERSION: string,
+    LICENSE_TYPE: string,
+    GENERATION_DURATION: uint32,
+    GENERATION_RESULT: string,
+    PROCESS_DURATION: uint32,
+    PROCESS_RESULT: string,
+}
+
+DRM_CERTIFICATE_DOWNLOWD_INFO
+{
+    MODULE: string,
+    TIME: uint32,
+    APP_NAME: string,
+    INSTANCE_ID: string,
+    DRM_NAME: string,
+    DRM_UUID: string,
+    CLIENT_VERSION: string,
+    GENERATION_DURATION: uint32,
+    GENERATION_RESULT: string,
+    PROCESS_DURATION: uint32,
+    PROCESS_RESULT: string,
+    CALL_SERVER_TIME: uint32,
+    SERVER_COST_DURATION: uint32,
+    SERVER_RESULT: string,
+}
+```
\ No newline at end of file