diff --git a/code/DocsSample/UserAuthentication/README.md b/code/DocsSample/UserAuthentication/README.md
index abdbbd254645919c48e1b06fa65ad373d8f1d1bd..53d649cd031967dd60a446c6b1128938cbfced0d 100644
--- a/code/DocsSample/UserAuthentication/README.md
+++ b/code/DocsSample/UserAuthentication/README.md
@@ -59,7 +59,7 @@
 
 1.本示例仅支持标准系统上运行，支持设备：RK3568。
 
-2.本示例为Stage模型，支持API16版本SDK，版本号：5.1.0.46。
+2.本示例为Stage模型，支持API18版本SDK。
 
 3.本示例需要使用DevEco Studio Release（5.0.5.306）及以上版本才可编译运行。
 
diff --git a/code/DocsSample/UserAuthentication/build-profile.json5 b/code/DocsSample/UserAuthentication/build-profile.json5
index afbd300336e422805aaa94add546bfb08ee01454..320fd242247d6a3bfc62e1564dbe3679783c8b2d 100644
--- a/code/DocsSample/UserAuthentication/build-profile.json5
+++ b/code/DocsSample/UserAuthentication/build-profile.json5
@@ -19,9 +19,9 @@
       {
         "name": "default",
         "signingConfig": "default",
-        "compileSdkVersion": 16,
-        "compatibleSdkVersion": 16,
-        "targetSdkVersion": 16,
+        "compileSdkVersion": 18,
+        "compatibleSdkVersion": 18,
+        "targetSdkVersion": 18,
         "runtimeOS": "OpenHarmony"
       }
     ],
diff --git a/code/DocsSample/UserAuthentication/entry/src/main/ets/pages/Index.ets b/code/DocsSample/UserAuthentication/entry/src/main/ets/pages/Index.ets
index 0f3021df511cdea522bbdefaa649941df99d7849..b36dcf7d763c0c677f72dbc4ae1e81524180443a 100644
--- a/code/DocsSample/UserAuthentication/entry/src/main/ets/pages/Index.ets
+++ b/code/DocsSample/UserAuthentication/entry/src/main/ets/pages/Index.ets
@@ -233,10 +233,6 @@ struct Index {
    * */
   initiatingUserAuthentication4() {
     // 设置认证参数
-    let reuseUnlockResult: userAuth.ReuseUnlockResult = {
-      reuseMode: userAuth.ReuseMode.CALLER_IRRELEVANT_AUTH_TYPE_RELEVANT,
-      reuseDuration: userAuth.MAX_ALLOWABLE_REUSE_DURATION,
-    };
     try {
       const rand = cryptoFramework.createRandom();
       const len: number = 16;
@@ -245,7 +241,6 @@ struct Index {
         challenge: randData,
         authType: [userAuth.UserAuthType.PIN, userAuth.UserAuthType.FACE, userAuth.UserAuthType.FINGERPRINT],
         authTrustLevel: userAuth.AuthTrustLevel.ATL3,
-        reuseUnlockResult: reuseUnlockResult,
       };
       // 配置认证界面
       const widgetParam: userAuth.WidgetParam = {
diff --git a/code/DocsSample/UserAuthentication/entry/src/main/ets/pages/testPage.ets b/code/DocsSample/UserAuthentication/entry/src/main/ets/pages/testPage.ets
index 31fdbfaa07168f83e01502b3b74a43710d469a00..c5aea7ee936c9fee96c9301dfadd4c8a9d9e0a83 100644
--- a/code/DocsSample/UserAuthentication/entry/src/main/ets/pages/testPage.ets
+++ b/code/DocsSample/UserAuthentication/entry/src/main/ets/pages/testPage.ets
@@ -217,10 +217,6 @@ export async function initiatingUserAuthentication3() {
  * */
 export async function initiatingUserAuthentication4() {
   // 设置认证参数
-  let reuseUnlockResult: userAuth.ReuseUnlockResult = {
-    reuseMode: userAuth.ReuseMode.CALLER_IRRELEVANT_AUTH_TYPE_RELEVANT,
-    reuseDuration: userAuth.MAX_ALLOWABLE_REUSE_DURATION,
-  }
   try {
     const rand = cryptoFramework.createRandom();
     const len: number = 16;
@@ -229,7 +225,6 @@ export async function initiatingUserAuthentication4() {
       challenge: randData,
       authType: [userAuth.UserAuthType.PIN, userAuth.UserAuthType.FACE, userAuth.UserAuthType.FINGERPRINT],
       authTrustLevel: userAuth.AuthTrustLevel.ATL3,
-      reuseUnlockResult: reuseUnlockResult,
     };
     // 配置认证界面
     const widgetParam: userAuth.WidgetParam = {