diff --git a/Util/eTSUtilTypeCheck/README_zh.md b/Util/eTSUtilTypeCheck/README_zh.md
new file mode 100644
index 0000000000000000000000000000000000000000..c198958c8dd9055487299739e71152dac82bc633
--- /dev/null
+++ b/Util/eTSUtilTypeCheck/README_zh.md
@@ -0,0 +1,15 @@
+# util工具函数-类型校验
+
+## 简介
+
+本示例通过对给定值进行校验，判断是否符合Type类型，并输出校验结果。
+
+### 使用说明
+
+1.点击显示预置值按钮，将会显示预置值。
+
+2.点击校验预置值按钮，将会对预置值进行校验，并输出校验结果。
+
+### 约束与限制
+
+本示例仅支持在标准系统上运行。
\ No newline at end of file
diff --git a/Util/eTSUtilTypeCheck/build.gradle b/Util/eTSUtilTypeCheck/build.gradle
new file mode 100644
index 0000000000000000000000000000000000000000..f350f30a90f962897ebab2c31e5bbf3e4868a578
--- /dev/null
+++ b/Util/eTSUtilTypeCheck/build.gradle
@@ -0,0 +1,34 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+apply plugin: 'com.huawei.ohos.app'
+
+//For instructions on signature configuration, see https://developer.harmonyos.com/cn/docs/documentation/doc-guides/ide_debug_device-0000001053822404#section1112183053510
+ohos {
+    compileSdkVersion 8
+    supportSystem "standard"
+}
+	
+buildscript {
+    repositories {
+        maven {
+            url 'https://repo.huaweicloud.com/repository/maven/'
+        }
+        maven {
+            url 'https://developer.huawei.com/repo/'
+        }
+    }
+    dependencies {
+        classpath 'com.huawei.ohos:hap:3.0.5.2'
+        classpath 'com.huawei.ohos:decctest:1.2.7.2'
+    }
+}
+
+allprojects {
+    repositories {
+        maven {
+            url 'https://repo.huaweicloud.com/repository/maven/'
+        }
+        maven {
+            url 'https://developer.huawei.com/repo/'
+        }
+    }
+}
diff --git a/Util/eTSUtilTypeCheck/entry/build.gradle b/Util/eTSUtilTypeCheck/entry/build.gradle
new file mode 100644
index 0000000000000000000000000000000000000000..cef7b37de8f320938458ca42edde1462669836d2
--- /dev/null
+++ b/Util/eTSUtilTypeCheck/entry/build.gradle
@@ -0,0 +1,21 @@
+apply plugin: 'com.huawei.ohos.hap'
+//For instructions on signature configuration, see https://developer.harmonyos.com/cn/docs/documentation/doc-guides/ide_debug_device-0000001053822404#section1112183053510
+ohos {
+    compileSdkVersion 8
+    defaultConfig {
+        compatibleSdkVersion 7
+    }
+    buildTypes {
+        release {
+            proguardOpt {
+                proguardEnabled false
+                rulesFiles 'proguard-rules.pro'
+            }
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar', '*.har'])
+    testImplementation 'junit:junit:4.13.1'
+}
diff --git a/Util/eTSUtilTypeCheck/entry/src/main/config.json b/Util/eTSUtilTypeCheck/entry/src/main/config.json
new file mode 100644
index 0000000000000000000000000000000000000000..8d3b68879ed1cd534293a60f0a918410439dc8a8
--- /dev/null
+++ b/Util/eTSUtilTypeCheck/entry/src/main/config.json
@@ -0,0 +1,67 @@
+{
+  "app": {
+    "bundleName": "com.samples.etsutiltypecheck",
+    "vendor": "samples",
+    "version": {
+      "code": 1000000,
+      "name": "1.0.0"
+    }
+  },
+  "deviceConfig": {},
+  "module": {
+    "package": "com.samples.etsutiltypecheck",
+    "name": ".MyApplication",
+    "mainAbility": ".MainAbility",
+    "srcPath": "",
+    "deviceType": [
+      "phone"
+    ],
+    "distro": {
+      "deliveryWithInstall": true,
+      "moduleName": "entry",
+      "moduleType": "entry",
+      "installationFree": false
+    },
+    "abilities": [
+      {
+        "skills": [
+          {
+            "entities": [
+              "entity.system.home"
+            ],
+            "actions": [
+              "action.system.home"
+            ]
+          }
+        ],
+        "orientation": "unspecified",
+        "visible": true,
+        "srcPath": "MainAbility",
+        "name": ".MainAbility",
+        "srcLanguage": "ets",
+        "icon": "$media:icon",
+        "description": "$string:description_mainability",
+        "formsEnabled": false,
+        "label": "$string:entry_MainAbility",
+        "type": "page",
+        "launchType": "standard"
+      }
+    ],
+    "js": [
+      {
+        "mode": {
+          "syntax": "ets",
+          "type": "pageAbility"
+        },
+        "pages": [
+          "pages/index"
+        ],
+        "name": ".MainAbility",
+        "window": {
+          "designWidth": 720,
+          "autoDesignWidth": false
+        }
+      }
+    ]
+  }
+}
\ No newline at end of file
diff --git a/Util/eTSUtilTypeCheck/entry/src/main/ets/MainAbility/app.ets b/Util/eTSUtilTypeCheck/entry/src/main/ets/MainAbility/app.ets
new file mode 100644
index 0000000000000000000000000000000000000000..bf28e58b36cf11db491d3f00768ef2c9e41d05cf
--- /dev/null
+++ b/Util/eTSUtilTypeCheck/entry/src/main/ets/MainAbility/app.ets
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export default {
+  onCreate() {
+    console.info('Application onCreate')
+  },
+  onDestroy() {
+    console.info('Application onDestroy')
+  },
+}
\ No newline at end of file
diff --git a/Util/eTSUtilTypeCheck/entry/src/main/ets/MainAbility/common/checkType.ets b/Util/eTSUtilTypeCheck/entry/src/main/ets/MainAbility/common/checkType.ets
new file mode 100644
index 0000000000000000000000000000000000000000..150e7267b64db2dffff4e84c0b25ba7a60b28c74
--- /dev/null
+++ b/Util/eTSUtilTypeCheck/entry/src/main/ets/MainAbility/common/checkType.ets
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import util from '@ohos.util'
+
+@Component
+export struct CheckType {
+  @State result: string = ' '
+  @Link checkResult: string
+  @Link presetValue: Array<any>
+
+/*
+ * Determine the type of check value.The key in the map is the result of 
+ * judging the type, and the value in the map is the method of judging the type.
+ *
+ * @param The value to check.
+ * @return Returns the check value type.
+ */
+  check(value) {
+    let utilType = new util.Types()
+    let map = new Map()
+    map.set('ArrayBuffer', utilType.isAnyArrayBuffer(value))
+    map.set('Arguments', utilType.isArgumentsObject(value))
+    map.set('AsyncFunction', utilType.isAsyncFunction(value))
+    map.set('Boolean', utilType.isBooleanObject(value))
+    map.set('DataView', utilType.isDataView(value))
+    map.set('External', utilType.isExternal(value))
+    map.set('Float32Array', utilType.isFloat32Array(value))
+    map.set('generator', utilType.isGeneratorFunction(value))
+    map.set('Int8Array', utilType.isInt8Array(value))
+    map.set('Map', utilType.isMap(value))
+    map.set('Error', utilType.isNativeError(value))
+    map.set('Number', utilType.isNumberObject(value))
+    map.set('Promise', utilType.isPromise(value))
+    map.set('RegExp', utilType.isRegExp(value))
+    map.set('Set', utilType.isSet(value))
+    map.set('String', utilType.isStringObject(value))
+    map.set('Symbol', utilType.isSymbolObject(value))
+    map.set('WeakMap', utilType.isWeakMap(value))
+    map.set('Uint8Array', utilType.isUint8Array(value))
+    map.set('WeakSet', utilType.isWeakSet(value))
+    for (let [key, value] of map) {
+      if (value == true) {
+        this.result = key
+        break
+      }
+    }
+    return this.result
+  }
+
+  show() {
+    let showResult: string = ''
+    for (let i = 0; i < this.presetValue.length; i++) {
+      let typeResult = this.check(this.presetValue[i])
+      showResult = showResult + `${this.presetValue[i]} check success,this value type is ${typeResult}\n`
+    }
+    this.checkResult = showResult
+  }
+
+  build() {
+    Button() {
+      Text($r("app.string.check"))
+        .fontColor(Color.Black)
+        .fontSize(20)
+        .textAlign(TextAlign.Center)
+        .width('85%')
+    }
+    .type(ButtonType.Capsule)
+    .backgroundColor('#0D9FFB')
+    .padding(5)
+    .margin({ top: 10 })
+    .onClick(() => {
+      this.show()
+    })
+  }
+}
\ No newline at end of file
diff --git a/Util/eTSUtilTypeCheck/entry/src/main/ets/MainAbility/common/showKey.ets b/Util/eTSUtilTypeCheck/entry/src/main/ets/MainAbility/common/showKey.ets
new file mode 100644
index 0000000000000000000000000000000000000000..9ea74359028dbe1ba347838ba027ed0e1b19d061
--- /dev/null
+++ b/Util/eTSUtilTypeCheck/entry/src/main/ets/MainAbility/common/showKey.ets
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+@Component
+export struct ShowKey {
+  @State result: string = ' '
+  @Link checkResult: string
+  @Link presetValue: Array<any>
+
+  build() {
+    Button() {
+      Text($r("app.string.show"))
+        .fontColor(Color.Black)
+        .fontSize(20)
+        .textAlign(TextAlign.Center)
+        .width('85%')
+    }
+    .type(ButtonType.Capsule)
+    .backgroundColor('#0D9FFB')
+    .padding(5)
+    .margin({ top: 10 })
+    .onClick(() => {
+      this.checkResult = `numberVal = ${this.presetValue[0]}\n`
+      +`stringVal = ${this.presetValue[1]}\n`
+      +`booleanVal = ${this.presetValue[2]}\n`
+      +`int8Array = ${this.presetValue[3]}`
+    })
+  }
+}
\ No newline at end of file
diff --git a/Util/eTSUtilTypeCheck/entry/src/main/ets/MainAbility/pages/index.ets b/Util/eTSUtilTypeCheck/entry/src/main/ets/MainAbility/pages/index.ets
new file mode 100644
index 0000000000000000000000000000000000000000..71481139c054b320869516fe737360119a72bff6
--- /dev/null
+++ b/Util/eTSUtilTypeCheck/entry/src/main/ets/MainAbility/pages/index.ets
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { ShowKey } from '../common/showKey.ets'
+import { CheckType } from '../common/checkType.ets'
+
+let int8Array = new Int8Array(new ArrayBuffer(8))
+let numVal = new Number(55)
+let strVal = new String('sdsddadas')
+let boolVal = new Boolean(true)
+for (let i = 0; i < int8Array.length; i++) {
+  int8Array[i] = i
+}
+
+@Entry
+@Component
+struct Index {
+  @State checkResult: string = ' '
+  @State presetValue: Array<any> = [numVal, strVal, boolVal, int8Array]
+
+  build() {
+    Flex() {
+      Column() {
+        Text($r('app.string.entry_MainAbility'))
+          .textAlign(TextAlign.Center)
+          .width('100%')
+          .height('6%')
+          .backgroundColor('#0D9FFB')
+          .fontSize(20)
+          .fontColor(Color.Black)
+
+        Scroll() {
+          Column() {
+            Text(this.checkResult)
+              .width('90%')
+              .height('65%')
+              .fontSize(20)
+              .margin(20)
+              .padding({ left: 5, right: 5 })
+              .border({ width: 2, radius: 15, color: Color.Gray })
+          }
+        }
+
+        Column() {
+          ShowKey({ presetValue: $presetValue, checkResult: $checkResult })
+          CheckType({ presetValue: $presetValue, checkResult: $checkResult })
+        }
+      }
+    }
+    .width('100%')
+    .height('100%')
+  }
+}
diff --git a/Util/eTSUtilTypeCheck/entry/src/main/resources/base/element/string.json b/Util/eTSUtilTypeCheck/entry/src/main/resources/base/element/string.json
new file mode 100644
index 0000000000000000000000000000000000000000..8ea33e15421faffa3e854f4475580129ff43a39e
--- /dev/null
+++ b/Util/eTSUtilTypeCheck/entry/src/main/resources/base/element/string.json
@@ -0,0 +1,24 @@
+{
+  "string": [
+    {
+      "name": "entry_MainAbility",
+      "value": "eTSUtilTypeCheck"
+    },
+    {
+      "name": "description_mainability",
+      "value": "eTS_Empty Ability"
+    },
+    {
+      "name": "text",
+      "value": "confirm"
+    },
+    {
+      "name": "show",
+      "value": "Display preset value"
+    },
+    {
+      "name": "check",
+      "value": "Check preset value"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/Util/eTSUtilTypeCheck/entry/src/main/resources/base/media/icon.png b/Util/eTSUtilTypeCheck/entry/src/main/resources/base/media/icon.png
new file mode 100644
index 0000000000000000000000000000000000000000..ce307a8827bd75456441ceb57d530e4c8d45d36c
Binary files /dev/null and b/Util/eTSUtilTypeCheck/entry/src/main/resources/base/media/icon.png differ
diff --git a/Util/eTSUtilTypeCheck/entry/src/main/resources/en/element/string.json b/Util/eTSUtilTypeCheck/entry/src/main/resources/en/element/string.json
new file mode 100644
index 0000000000000000000000000000000000000000..8ea33e15421faffa3e854f4475580129ff43a39e
--- /dev/null
+++ b/Util/eTSUtilTypeCheck/entry/src/main/resources/en/element/string.json
@@ -0,0 +1,24 @@
+{
+  "string": [
+    {
+      "name": "entry_MainAbility",
+      "value": "eTSUtilTypeCheck"
+    },
+    {
+      "name": "description_mainability",
+      "value": "eTS_Empty Ability"
+    },
+    {
+      "name": "text",
+      "value": "confirm"
+    },
+    {
+      "name": "show",
+      "value": "Display preset value"
+    },
+    {
+      "name": "check",
+      "value": "Check preset value"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/Util/eTSUtilTypeCheck/entry/src/main/resources/zh/element/string.json b/Util/eTSUtilTypeCheck/entry/src/main/resources/zh/element/string.json
new file mode 100644
index 0000000000000000000000000000000000000000..354dbcfd64c2988c245f35f9efd2122f8b5908e9
--- /dev/null
+++ b/Util/eTSUtilTypeCheck/entry/src/main/resources/zh/element/string.json
@@ -0,0 +1,24 @@
+{
+  "string": [
+    {
+      "name": "entry_MainAbility",
+      "value": "util工具函数-内置对象类型检查"
+    },
+    {
+      "name": "description_mainability",
+      "value": "eTS_Empty Ability"
+    },
+    {
+      "name": "text",
+      "value": "确认"
+    },
+    {
+      "name": "show",
+      "value": "显示预置值"
+    },
+    {
+      "name": "check",
+      "value": "校验预置值"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/Util/eTSUtilTypeCheck/screenhots/devices/main.png b/Util/eTSUtilTypeCheck/screenhots/devices/main.png
new file mode 100644
index 0000000000000000000000000000000000000000..9540a2a5d5e7a3592a0ab03178bee1fbae2cf01f
Binary files /dev/null and b/Util/eTSUtilTypeCheck/screenhots/devices/main.png differ
diff --git a/Util/eTSUtilTypeCheck/settings.gradle b/Util/eTSUtilTypeCheck/settings.gradle
new file mode 100644
index 0000000000000000000000000000000000000000..4773db73233a570c2d0c01a22e75321acfbf7a07
--- /dev/null
+++ b/Util/eTSUtilTypeCheck/settings.gradle
@@ -0,0 +1 @@
+include ':entry'