diff --git a/frameworks/native/src/common_event_support.cpp b/frameworks/native/src/common_event_support.cpp
index b51fc8ae8b526c6c23963ce94d4ddead65d2e0a2..d04507213c3d8d2d3b0ce9d18d9e4a5c757cdc4b 100644
--- a/frameworks/native/src/common_event_support.cpp
+++ b/frameworks/native/src/common_event_support.cpp
@@ -1333,6 +1333,19 @@ const std::string CommonEventSupport::COMMON_EVENT_SCREEN_LOCKED = "usual.event.
  */
 const std::string CommonEventSupport::COMMON_EVENT_SCREEN_UNLOCKED = "usual.event.SCREEN_UNLOCKED";
 
+/**
+ * Indicates the action of a common event about special code.
+ * This is a protected common event that can only be sent by system.
+ */
+const std::string CommonEventSupport::COMMON_EVENT_SPECIAL_CODE = "common.event.SPECIAL_CODE";
+
+/**
+ * Indicates the action of a common event that the call audio quality information has been updated.
+ * This is a protected common event that can only be sent by system.
+ */
+const std::string CommonEventSupport::COMMON_EVENT_AUDIO_QUALITY_CHANGE =
+    "usual.event.AUDIO_QUALITY_CHANGE";
+
 CommonEventSupport::CommonEventSupport()
 {
     Init();
@@ -1664,6 +1677,11 @@ void CommonEventSupport::Init()
     commonEventSupport_.emplace_back(CommonEventSupport::COMMON_EVENT_SCREEN_LOCKED);
 
     commonEventSupport_.emplace_back(CommonEventSupport::COMMON_EVENT_SCREEN_UNLOCKED);
+
+    commonEventSupport_.emplace_back(CommonEventSupport::COMMON_EVENT_SPECIAL_CODE);
+
+    commonEventSupport_.emplace_back(CommonEventSupport::COMMON_EVENT_AUDIO_QUALITY_CHANGE);
+
     return;
 }
 
diff --git a/interfaces/inner_api/common_event_support.h b/interfaces/inner_api/common_event_support.h
index 3ceea09f332e698f61ab1fe2485ce929e8e3b224..997535b852658194d2e0ed7ff8cf0099af624082 100644
--- a/interfaces/inner_api/common_event_support.h
+++ b/interfaces/inner_api/common_event_support.h
@@ -1210,6 +1210,18 @@ public:
      */
     static const std::string COMMON_EVENT_SCREEN_UNLOCKED;
 
+    /**
+    * Indicates the action of a common event about special code.
+    * This is a protected common event that can only be sent by system.
+    */
+    static const std::string COMMON_EVENT_SPECIAL_CODE;
+
+    /**
+    * Indicates the action of a common event that the call audio quality information has been updated.
+    * This is a protected common event that can only be sent by system.
+    */
+    static const std::string COMMON_EVENT_AUDIO_QUALITY_CHANGE;
+
 public:
     CommonEventSupport();
 
diff --git a/interfaces/kits/js/@ohos.commonEvent.d.ts b/interfaces/kits/js/@ohos.commonEvent.d.ts
index b1fe4ed11cf6a77cb3da56ddedca464691828d59..fe0e3ddd5bf960cd57118b499e8b6e0e57c40bf6 100644
--- a/interfaces/kits/js/@ohos.commonEvent.d.ts
+++ b/interfaces/kits/js/@ohos.commonEvent.d.ts
@@ -1120,7 +1120,22 @@ declare namespace commonEvent {
      * To subscribe to this protected common event that can only be sent by system.
      * @since 10
      */
-    COMMON_EVENT_HTTP_PROXY_CHANGE = "usual.event.HTTP_PROXY_CHANGE"
+    COMMON_EVENT_HTTP_PROXY_CHANGE = "usual.event.HTTP_PROXY_CHANGE",
+
+    /**
+     * Indicates the action of a common event about special code.
+     * This is a protected common event that can only be sent by system.
+     * @systemapi
+     * @since 10
+     */
+    COMMON_EVENT_SPECIAL_CODE = "usual.event.SPECIAL_CODE",
+
+    /**
+     * Indicates the action of a common event that the call audio quality information has been updated.
+     * This is a protected common event that can only be sent by system.
+     * @since 10
+     */
+    COMMON_EVENT_AUDIO_QUALITY_CHANGE = "usual.event.AUDIO_QUALITY_CHANGE"
   }
 }
 
diff --git a/interfaces/kits/napi/support/src/support.cpp b/interfaces/kits/napi/support/src/support.cpp
index c44fc4d255c9ae28f64a36aa93dbd46f6bafe43e..af3059d45fe90a44964e4ce7d0a180610c7449d8 100644
--- a/interfaces/kits/napi/support/src/support.cpp
+++ b/interfaces/kits/napi/support/src/support.cpp
@@ -574,6 +574,14 @@ napi_value SupportInit(napi_env env, napi_value exports)
         obj,
         EventFwk::CommonEventSupport::COMMON_EVENT_SCREEN_UNLOCKED,
         "COMMON_EVENT_SCREEN_UNLOCKED");
+    SetNamedPropertyByStr(env,
+        obj,
+        EventFwk::CommonEventSupport::COMMON_EVENT_SPECIAL_CODE,
+        "COMMON_EVENT_SPECIAL_CODE");
+    SetNamedPropertyByStr(env,
+        obj,
+        EventFwk::CommonEventSupport::COMMON_EVENT_AUDIO_QUALITY_CHANGE,
+        "COMMON_EVENT_AUDIO_QUALITY_CHANGE");
     napi_property_descriptor exportFuncs[] = {DECLARE_NAPI_PROPERTY("Support", obj)};
     napi_define_properties(env, exports, sizeof(exportFuncs) / sizeof(*exportFuncs), exportFuncs);