diff --git a/uni_modules/uni-memorywarning/utssdk/index.d.ts b/uni_modules/uni-memorywarning/utssdk/index.d.ts
new file mode 100644
index 0000000000000000000000000000000000000000..fbad2381541932af0d66eb7abc0bfb22bbdb1d36
--- /dev/null
+++ b/uni_modules/uni-memorywarning/utssdk/index.d.ts
@@ -0,0 +1,71 @@
+declare namespace UniNamespace {
+
+interface MemoryWarningCallbackResult {
+  /**
+   * 内存警告等级(仅安卓平台有效，iOS始终是0)
+   */
+  level: number
+}
+
+/**
+ * uni.onMemoryWarning/uni.offMemoryWarning回调函数定义
+ */
+type MemoryWarningCallback = (res: MemoryWarningCallbackResult) => void
+
+type OnMemoryWarning = (callback: MemoryWarningCallback) => void
+
+type OffMemoryWarning = (callback : MemoryWarningCallback | null) => void
+
+}
+
+
+declare interface Uni {
+  /**
+   * 开启监听内存警告
+   *
+   * @param {MemoryWarningCallback} callback
+   * @tutorial https://uniapp.dcloud.net.cn/api/system/memory.html#onmemorywarning
+   * @uniPlatform {
+   *    "app": {
+   *        "android": {
+   *            "osVer": "4.4.4",
+   *            "uniVer": "3.7.7",
+   *            "unixVer": "3.9.0"
+   *        },
+   *        "ios": {
+   *            "osVer": "9.0",
+   *            "uniVer": "3.7.7",
+   *            "unixVer": "3.9.0"
+   *   	  }
+   *    }
+   * }
+   * @uniVersion 3.7.7
+   * @uniVueVersion 2,3  //支持的vue版本
+   * @autotest { expectCallback: true }
+   */
+  onMemoryWarning(callback: UniNamespace.MemoryWarningCallback) : void,
+  /**
+   * 取消监听内存不足告警事件
+   *
+   * @param {MemoryWarningCallback} callback
+   * @tutorial https://uniapp.dcloud.net.cn/api/system/memory.html#offmemorywarning
+   * @uniPlatform {
+   *    "app": {
+   *        "android": {
+   *            "osVer": "4.4.4",
+   *            "uniVer": "3.7.7",
+   *            "unixVer": "3.9.0"
+   *        },
+   *        "ios": {
+   *            "osVer": "9.0",
+   *            "uniVer": "3.7.7",
+   *            "unixVer": "3.9.0"
+   *   	  }
+   *    }
+   * }
+   * @uniVersion 3.7.7
+   * @uniVueVersion 2,3  //支持的vue版本
+   * @autotest { expectCallback: true }
+   */
+  offMemoryWarning(callback : UniNamespace.MemoryWarningCallback | null) : void
+}