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+# @ohos.secureElement( 安全单元的通道管理)
+
+本模块主要用于操作及管理安全单元（SecureElement，简称SE）。文档中出现的SE服务为SEService实例，参见[newSEService](#secureelementnewseservice)。
+
+对于文档中出现以下类型说明：
+
+| 类型    | 说明                                           |
+| ------- | ---------------------------------------------- |
+| Session | 此类的实例表示与设备上可用的某个SE的连接会话。 |
+| Reader  | 此类的实例表示该设备支持的SE Reader。          |
+| Channel | 此类的实例表示向SE打开的ISO/IEC 7816-4通道。   |
+
+> **说明：**
+>
+> 本模块首批接口从API version 10开始支持。后续版本的新增接口，采用上角标单独标记接口的起始版本。
+
+## **导入模块**
+
+```js
+import secureElement from '@ohos.secureElement';
+```
+
+## secureElement.ServiceState
+
+定义不同的SE 服务状态值。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+| 名称         | 值   | 说明               |
+| ------------ | ---- | ------------------ |
+| DISCONNECTED | 0    | SE服务状态已断开。 |
+| CONNECTED    | 1    | SE服务状态已连接。 |
+
+## secureElement.newSEService
+
+newSEService(type: 'serviceState', callback: Callback<[ServiceState](#secureelementservicestate)>): SEService
+
+建立一个可用于连接到系统中所有可用SE的新连接（服务）。连接过程较为耗时，所以此方法仅提供异步方式进行的。
+
+仅当指定的回调或者当[isConnected](#seserviceisconnected)方法返回true时，该返回SEService对象是可用的。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**参数：**
+
+| **参数名** | **类型**                                             | **说明**             |
+| ---------- | ---------------------------------------------------- | -------------------- |
+| type       | string                                               | 'serviceState'       |
+| callback   | Callback<[ServiceState](#secureelementservicestate)> | 返回SE服务状态的回调 |
+
+**返回值：**
+
+| **类型**  | **说明**   |
+| :-------- | :--------- |
+| SEService | SE服务实例 |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcSEService: secureElement.SEService = null;
+
+this.result = "Service state is Unkown";
+try {
+    this.nfcSEService = secureElement.newSEService("serviceState", (state) => {
+        if (state == secureElement.ServiceState.DISCONNECTED) {
+            this.result = "Service state is Disconnected";
+        } else {
+            this.result = "Service state is Connected";
+        }
+    });
+} catch (e) {
+    this.result = "newSEService occurs exception:" + e.message;
+}
+```
+
+## SEService.getReaders
+
+getReaders(): Reader[]
+
+返回可用SE Reader的数组。返回的数组中不能有重复的对象。即使没有插入卡，也应列出所有可用的reader。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**返回值：**
+
+| **类型** | **说明**               |
+| :------- | :--------------------- |
+| Reader[] | 返回可用Reader对象数组 |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcSEService: secureElement.SEService = null;
+@State nfcServiceState: secureElement.ServiceState = null;
+@State nfcOmaReader: secureElement.Reader = null;
+@State nfcOmaReaderList: secureElement.Reader[] = null;
+
+// get SEService
+try {
+    this.nfcSEService = secureElement.newSEService("serviceState", (state) => {
+        if (state == secureElement.ServiceState.DISCONNECTED) {
+            this.result = "Service state is Disconnected";
+        } else {
+            this.result = "Service state is Connected";
+        }
+    });
+} catch (e) {
+    this.result = "newSEService excpetion:" + e.message;
+}
+
+try {
+    this.nfcOmaReaderList = this.nfcSEService.getReaders();
+    if (this.nfcOmaReaderList != null && this.nfcOmaReaderList.length > 0) {
+        this.nfcOmaReader = this.nfcOmaReaderList[0];
+        this.result = "get reader successfully";
+    } else {
+        this.result = "get reader failed";
+    }
+} catch (e) {
+    this.result = "getReaders exception:" + e.message;
+}
+```
+
+## SEService.isConnected
+
+isConnected(): boolean
+
+检查SE服务是否已连接
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**返回值：**
+
+| **类型** | **说明**                                       |
+| :------- | :--------------------------------------------- |
+| boolean  | true:SE 服务状态已连接  false:SE服务状态已断开 |
+
+**示例：**
+
+```JS
+import secureElement from '@ohos.secureElement';
+
+@State result: string = ''
+@State nfcSEService: secureElement.SEService = null;
+
+try {
+    let ret: boolean;
+    // refer to newSEService for this.nfcSEService 
+    ret = this.nfcSEService.isConnected();
+    if (ret) {
+        this.result = 'get state: connected';
+    } else {
+        this.result = 'get state: not connected';
+    }
+} catch (e) {
+    this.result = "isConnected exception: " + e.message;
+}
+```
+
+## SEService.shutdown
+
+shutdown(): void
+
+释放该service分配的所有SE资源。此后[isConnected](#seserviceisconnected)将返回false。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcSEService: secureElement.SEService = null;
+
+try {
+    // refer to newSEService for this.nfcSEService 
+    this.nfcSEService.shutdown();
+    this.result = "shutdown successfully";
+} catch (e) {
+    this.result = "shutdown exception:" + e.message;
+}
+```
+
+## SEService.getVersion
+
+getVersion(): string
+
+返回此实现所基于的OMA规范的版本号。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**返回值：**
+
+| **类型** | **说明**                                           |
+| -------- | -------------------------------------------------- |
+| string   | OMA版本号（例如，“3.3”表示开放移动API规范版本3.3） |
+
+**示例：**
+
+```JS
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcSEService: secureElement.SEService = null;
+
+this.result = "version: "
+try {
+    // refer to newSEService for this.nfcSEService 
+    this.result += this.nfcSEService.getVersion();
+} catch (e) {
+    this.result = "getVersion exception:" + e.message;
+}
+```
+
+## Reader.getName
+
+getName(): string
+
+返回此reader的名称。如果此读卡器是SIM reader，则其名称必须为“SIM[Slot]”。如果读卡器是嵌入式SE reader，则其名称须为“eSE[slot]”。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**返回值：**
+
+| **类型** | **说明**   |
+| -------- | ---------- |
+| string   | reader名称 |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaReader: secureElement.Reader = null;
+
+try {
+    // refer to SEService.getReaders for this.nfcOmaReader 
+    this.result = this.nfcOmaReader.getName();
+} catch (e) {
+    this.result = "getName exception:" + e.message;
+}
+```
+
+## Reader.isSecureElementPresent
+
+isSecureElementPresent(): boolean
+
+检查当前Reader所对应的安全单元是否可用。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**返回值：**
+
+| **类型** | **说明**                                     |
+| -------- | -------------------------------------------- |
+| boolean  | true: 安全单元可用， false: 安全单元不可用。 |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaReader: secureElement.Reader = null;
+
+try {
+    // refer to SEService.getReaders for this.nfcOmaReader
+    if (this.nfcOmaReader.isSecureElementPresent()) {
+        this.result = "isSecureElementPresent TRUE";
+    } else {
+        this.result = "isSecureElementPresent FALSE";
+    }
+} catch (e) {
+    this.result = "isSecureElementPresent exception:" + e.message;
+}
+```
+
+## Reader.openSession
+
+ openSession(): Session
+
+连接到此reader中的SE。此方法在返回会话对象之前准备（初始化）SE进行通信。同一reader上可能同时打开多个会话。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**返回值：**
+
+| **类型** | **说明**                       |
+| -------- | ------------------------------ |
+| Session  | 用于创建channel的Session对象。 |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+| 3300104  | Secure element IO exception.     |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaReader: secureElement.Reader = null;
+@State nfcOmaSession: secureElement.Session = null;
+
+try {
+    // refer to SEService.getReaders for this.nfcOmaReader
+    this.nfcOmaSession = this.nfcOmaReader.openSession();
+    if (this.nfcOmaSession) {
+        this.result = "get session successfully";
+    } else {
+        this.result = "get session failed";
+    }
+} catch (e) {
+    this.result = "OpenSession exception: " + e.message;
+}
+```
+
+## Reader.closeSessions
+
+ closeSessions(): void
+
+关闭在此reader上打开的所有session。所有这些session打开的所有channel都将关闭。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaReader: secureElement.Reader = null;
+
+try {
+    // refer to SEService.getReaders for this.nfcOmaReader
+    this.nfcOmaReader.closeSessions();
+    this.result = "close Sessions successfully";
+} catch (e) {
+    this.result = "closeSessions exception:" + e.message;
+}
+```
+
+## Session.getReader
+
+getReader(): Reader
+
+获取提供此session的reader。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**返回值：**
+
+| **类型** | **说明**                    |
+| -------- | --------------------------- |
+| Reader   | 返回此session的Reader对象。 |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaReader: secureElement.Reader = null;
+@State nfcOmaSession: secureElement.Session = null;
+
+try {
+    // refer to Reader.openSession for this.nfcOmaSession
+    this.nfcOmaReader = this.nfcOmaSession.getReader();
+    if (this.nfcOmaReader) {
+        this.result = "get reader successfully";
+    } else {
+        this.result = "get reader failed";
+    }
+} catch (e) {
+    this.result = "getReader exception:" + e.message;
+}
+```
+
+## Session.getATR
+
+getATR(): number[]
+
+获取该SE的ATR。如果该SE的ATR不可用，则应返回空数组。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**返回值：**
+
+| **类型** | **说明**                                     |
+| -------- | -------------------------------------------- |
+| number[] | 返回SE的ATR，SE的ATR不可用时，返回空的数组。 |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaSession: secureElement.Session = null;
+
+try {
+    // refer to Reader.openSession for this.nfcOmaSession
+    let ret = this.nfcOmaSession.getATR();
+    if (ret) {
+        this.result = "getATR result:[";
+        for (let i = 0; i < ret.length; ++i) {
+            this.result += ret[i];
+            this.result += ' ';
+        }
+        this.result += ']';
+    } else {
+        this.result = "getATR result is null";
+    }
+} catch (e) {
+    this.result = "getATR exception:" + e.message;
+}
+```
+
+## Session.close
+
+close(): void
+
+关闭与SE的连接。这将关闭此应用程序与此SE打开的所有channel。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaSession: secureElement.Session = null;
+
+try {
+    // refer to Reader.openSession for this.nfcOmaSession
+    this.nfcOmaSession.close();
+    this.result = "session close successfully";
+} catch (e) {
+    this.result = "session close exception:" + e.message;
+}
+```
+
+## Session. isClosed
+
+isClosed(): boolean
+
+检查session是否关闭。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**返回值：**
+
+| **类型** | **说明**                             |
+| -------- | ------------------------------------ |
+| boolean  | true：session状态已关闭，否则false。 |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+**示例：**
+
+```Js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaSession: secureElement.Session = null;
+
+try {
+    // refer to Reader.openSession for this.nfcOmaSession
+    let ret = this.nfcOmaSession.isClosed();
+    if (ret) {
+        this.result = "session state is closed";
+    } else {
+        this.result = "session state is not closed";
+    }
+} catch (e) {
+    this.result = "isClosed exception:" + e.message;
+}
+```
+
+## Session.closeChannels
+
+closeChannels(): void
+
+关闭此session上打开的所有channel。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaSession: secureElement.Session = null;
+
+try {
+    // refer to Reader.openSession for this.nfcOmaSession
+    this.nfcOmaSession.closeChannels();
+    this.result = "close Channels successfully";
+} catch (e) {
+    this.result = "closeChannels exception:" + e.message;
+}
+```
+
+## Session.openBasicChannel
+
+openBasicChannel(aid: number[]): Promise<Channel>
+
+获取基本channel，参考[ISO 7816-4]协议，返回Channel实例对象，SE不能提供新逻辑Channel或因缺乏可用逻辑Channel对象而无法获取访问控制规则，返回null。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**参数：**
+
+| **参数名** | **类型** | **说明**                                                     |
+| ---------- | -------- | ------------------------------------------------------------ |
+| aid        | number[] | 在此channel上选择的applet的AID数组或如果没有applet被选择时空的数组null。 |
+
+**返回值：**
+
+| **类型** | **说明**              |
+| -------- | --------------------- |
+| Channel  | 可用Channel对象实例。 |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+| 3300102  | No such element exception.       |
+| 3300103  | Illegal access rule exception.   |
+| 3300104  | Secure element IO exception.     |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaSession: secureElement.Session = null;
+@State nfcOmaChannel: secureElement.Channel = null;
+
+try {
+    // refer to Reader.openSession for this.nfcOmaSession
+    let getPromise = this.nfcOmaSession.openBasicChannel(this.aidArray);
+    getPromise.then((channel) => {
+        this.nfcOmaChannel = channel;
+        this.result = "openBasicChannel1 get channel successfully";
+    }).catch ((err) => {
+        this.result = "openBasicChannel1 exception:" + err.message;
+    });
+} catch (e) {
+    this.result = "OpenBasicChannel1 exception:" + e.message;
+}
+```
+
+## Session.openBasicChannel
+
+ openBasicChannel(aid: number[], callback: AsyncCallback<Channel>): void
+
+获取基本channel，参考[ISO 7816-4]协议，返回channel实例对象，SE不能提供新逻辑Channel或因缺乏可用逻辑Channel对象而无法获取访问控制规则，返回null。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**参数：**
+
+| **参数名** | **类型**               | **说明**                                                     |
+| ---------- | ---------------------- | ------------------------------------------------------------ |
+| aid        | number[]               | 在此channel上选择的applet的AID数组或null 如果没有applet被选择。 |
+| callback   | AsyncCallback<Channel> | callback返回可用Channel对象实例。                            |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+| 3300102  | No such element exception.       |
+| 3300103  | Illegal access rule exception.   |
+| 3300104  | Secure element IO exception.     |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaSession: secureElement.Session = null;
+@State nfcOmaChannel: secureElement.Channel = null;
+aidArray: number[] = [720, 1080];
+
+try {
+    // refer to Reader.openSession for this.nfcOmaSession
+    this.nfcOmaSession.openBasicChannel(this.aidArray, (error, data) => {
+        if (error) {
+            this.result = "openBasicChannel2 failed:" + JSON.stringify(error);
+            return;
+        }
+        this.nfcOmaChannel = data;
+        this.result = "openBasicChannel2 get channel successfully";
+    });
+} catch (e) {
+    this.result = "openBasicChannel2 exception:" + e.message;
+}
+```
+
+## Session.openBasicChannel
+
+openBasicChannel(aid: number[], p2: number): Promise<Channel>
+
+获取基本channel，参考[ISO 7816-4]协议，返回Channel实例对象，SE不能提供新逻辑Channel对象或因缺乏可用逻辑Channel对象而无法获取访问控制规则，返回null。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**参数：**
+
+| **参数名** | **类型** | **说明**                                                     |
+| ---------- | -------- | ------------------------------------------------------------ |
+| aid        | number[] | 在此channel上选择的applet的AID数组或null 如果没有applet被选择。 |
+| p2         | number   | 在该channel上执行的SELECT APDU的P2参数。                     |
+
+**返回值：**
+
+| **类型** | **说明**              |
+| -------- | --------------------- |
+| Channel  | 可用Channel对象实例。 |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+| 3300102  | No such element exception.       |
+| 3300103  | Illegal access rule exception.   |
+| 3300104  | Secure element IO exception.     |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaSession: secureElement.Session = null;
+@State nfcOmaChannel: secureElement.Channel = null;
+aidArray: number[] = [720, 1080];
+p2: number = 0x00;
+
+try {
+    // refer to Reader.openSession for this.nfcOmaSession
+    let getPromise = this.nfcOmaSession.openBasicChannel(this.aidArray, this.p2);
+    getPromise.then((channel) => {
+        this.nfcOmaChannel = channel;
+        this.result = "openBasicChannel3 get channel successfully";
+    }).catch ((err) => {
+        this.result = "openBasicChannel3 exception";
+    });
+} catch (e) {
+    this.result = "openBasicChannel3 exception:" + e.message;
+}
+```
+
+## Session.openBasicChannel
+
+openBasicChannel(aid: number[], p2:number, callback: AsyncCallback<Channel>): void
+
+获取基本channel，参考[ISO 7816-4]协议，返回channel实例对象，SE不能提供新逻辑Channel对象或因缺乏可用逻辑Channel对象而无法获取访问控制规则，返回null。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**参数：**
+
+| **参数名** | **类型**               | **说明**                                                     |
+| ---------- | ---------------------- | ------------------------------------------------------------ |
+| aid        | number[]               | 在此channel上选择的applet的AID数组或null 如果没有applet被选择。 |
+| p2         | number                 | 此channel上执行SELECT APDU命令的P2参数。                     |
+| callback   | AsyncCallback<Channel> | callback返回可用Channel对象实例。                            |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+| 3300102  | No such element exception.       |
+| 3300103  | Illegal access rule exception.   |
+| 3300104  | Secure element IO exception.     |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaSession: secureElement.Session = null;
+@State nfcOmaChannel: secureElement.Channel = null;
+aidArray: number[] = [720, 1080];
+p2: number = 0x00;
+
+try {
+    // refer to Reader.openSession for this.nfcOmaSession
+    this.nfcOmaSession.openBasicChannel(this.aidArray, this.p2, (error, data) => {
+        if (error) {
+            this.result = "openBasicChannel4 failed:" + JSON.stringify(error);
+            return;
+        }
+        this.nfcOmaChannel = data;
+        this.result = "openBasicChannel4 get channel successfully";
+    });
+} catch (e) {
+    this.result = "openBasicChannel4 exception:" + e.message;
+}
+```
+
+## Session.openLogicalChannel
+
+openLogicalChannel(aid: number[]): Promise<Channel>
+
+打开指定SE的逻辑Channel对象。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**参数：**
+
+| **参数名** | **类型** | **说明**                                |
+| ---------- | -------- | --------------------------------------- |
+| aid        | number[] | 在该Channel对象上选择的applet AID数组。 |
+
+**返回值：**
+
+| **类型** | **说明**                                                     |
+| -------- | ------------------------------------------------------------ |
+| Channel  | 返回可用Channel对象实例，SE不能提供新的Channel对象或因缺乏可用逻辑Channel对象无法获取访问控制规则返回null。 |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+| 3300102  | No such element exception.       |
+| 3300103  | Illegal access rule exception.   |
+| 3300104  | Secure element IO exception.     |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaSession: secureElement.Session = null;
+@State nfcOmaChannel: secureElement.Channel = null;
+aidArray: number[] = [720, 1080];
+
+try {
+    // refer to Reader.openSession for this.nfcOmaSession
+    let getPromise = this.nfcOmaSession.openLogicalChannel(this.aidArray)
+    getPromise.then((channel) => {
+        this.nfcOmaChannel = channel;
+   	    this.result = "openLogicChannel1 get channel successfully";
+    }).catch ((err) => {
+        this.result = "openLogicChannel1 exception:" + err.message;
+    });
+} catch (e) {
+    this.result = "openLogicChannel1 exception:" + e.message;
+}
+```
+
+## Session.openLogicalChannel
+
+ openLogicalChannel(aid:number[], callback: AsyncCallback<Channel>): void
+
+打开指定SE的逻辑Channel对象。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**参数：**
+
+| **参数名** | **类型**               | **说明**                                                     |
+| ---------- | ---------------------- | ------------------------------------------------------------ |
+| aid        | number[]               | 在该Channel对象上被选择的applet AID数组。                    |
+| callback   | AsyncCallback<Channel> | callback返回可用Channel对象实例，SE不能提供新的channel或因缺乏可用逻辑Channel对象无法获取访问控制规则返回null。 |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+| 3300102  | No such element exception.       |
+| 3300103  | Illegal access rule exception.   |
+| 3300104  | Secure element IO exception.     |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaSession: secureElement.Session = null;
+@State nfcOmaChannel: secureElement.Channel = null;
+aidArray: number[] = [720, 1080];
+
+try {
+    // refer to Reader.openSession for this.nfcOmaSession
+    this.nfcOmaSession.openLogicalChannel(this.aidArray, (error, data) => {
+        if (error) {
+            this.result = "openLogicChannel2 failed:" + JSON.stringify(error);
+            return;
+        }
+        this.nfcOmaChannel = data;
+        this.result = "openLogicChannel2 get channel successfully";
+    });
+} catch (e) {
+    this.result = "openLogicChannel2 exception:" + e.message;
+}
+```
+
+## Session.openLogicalChannel
+
+openLogicalChannel(aid: number[], p2: number): Promise<Channel>
+
+使用SE打开逻辑通道，选择由给定AID数组（AID非null且长度不为0）表示的applet.
+
+如果AID数组长度为0，则该方法将通过发送一个select命令来选择SE的Issuer Security Domain，该命令的AID长度为0（如[GPCS]中所定义）。
+
+如果AID为Null，则该方法应仅发送MANAGE CHANNEL Open（管理通道打开），而不应发送SELECT（选择）命令。在这种情况下，默认情况下将选择与逻辑通道关联的默认applet.
+
+P2通常为0x00。设备应允许P2的任何值，并且应允许以下值： 0x00, 0x04, 0x08, 0x0C (如 [ISO 7816-4](https://www.iso.org/standard/77180.html)中所定义).
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**参数：**
+
+| **参数名** | **类型** | **说明**                                  |
+| ---------- | -------- | ----------------------------------------- |
+| aid        | number[] | 在该Channel对象上被选择的applet AID数组。 |
+| p2         | number   | 此channel上执行SELECT APDU命令的P2参数。  |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+| 3300102  | No such element exception.       |
+| 3300103  | Illegal access rule exception.   |
+| 3300104  | Secure element IO exception.     |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaSession: secureElement.Session = null;
+@State nfcOmaChannel: secureElement.Channel = null;
+aidArray: number[] = [720, 1080];
+p2: number = 0x00;
+
+if (this.nfcOmaSession) {
+    try {
+    // refer to Reader.openSession for this.nfcOmaSession
+        let getPromise = this.nfcOmaSession.openLogicalChannel(this.aidArray, this.p2);
+        getPromise.then((channel) => {
+            this.nfcOmaChannel = channel;
+            this.result = "openLogicChannel3 get channel successfully";
+        }).catch ((err) => {
+            this.result = "openLogicChannel3 exception";
+        })
+} catch (e) {
+    this.result = "openLogicChannel3 exception:" + e.message;
+}
+```
+
+## Session.openLogicalChannel
+
+openLogicalChannel(aid: number[], p2: number, callback: AsyncCallback<Channel>):void
+
+使用SE打开逻辑通道，选择由给定AID数组（AID非null且长度不为0）表示的applet.
+
+如果AID数组长度为0，则该方法将通过发送一个select命令来选择SE的Issuer Security Domain，该命令的AID长度为0（如[GPCS]中所定义）。
+
+如果AID为Null，则该方法应仅发送MANAGE CHANNEL Open（管理通道打开），而不应发送SELECT（选择）命令。在这种情况下，默认情况下将选择与逻辑通道关联的默认applet.
+
+P2通常为0x00。设备应允许P2的任何值，并且应允许以下值： 0x00, 0x04, 0x08, 0x0C (如 [ISO 7816-4](https://www.iso.org/standard/77180.html)中所定义).
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**参数：**
+
+| **参数名** | **类型**               | **说明**                                                     |
+| ---------- | ---------------------- | ------------------------------------------------------------ |
+| aid        | number[]               | 在该Channel对象上被选择的applet AID数组。                    |
+| p2         | number                 | 此channel上执行SELECT APDU命令的P2参数。                     |
+| callback   | AsyncCallback<Channel> | callback返回可用Channel对象实例，SE不能提供新的Channel对象或因缺乏可用逻辑Channel对象无法获取访问控制规则返回null。 |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+| 3300102  | No such element exception.       |
+| 3300103  | Illegal access rule exception.   |
+| 3300104  | Secure element IO exception.     |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaSession: secureElement.Session = null;
+@State nfcOmaChannel: secureElement.Channel = null;
+aidArray: number[] = [720, 1080];
+p2: number = 0x00;
+
+try {
+    // refer to Reader.openSession for this.nfcOmaSession
+    this.nfcOmaSession.openLogicalChannel(this.aidArray, this.p2, (error, data) => {
+        if (error) {
+            this.result = "openLogicChannel4 failed:" + JSON.stringify(error);
+            return;
+        }
+        this.nfcOmaChannel = data;
+        this.result = "openLogicChannel4 get channel successfully";
+    })
+} catch (e) {
+    this.result = "openLogicChannel4 exception:" + e.message;
+}
+```
+
+## Channel. getSession
+
+ getSession(): Session
+
+获取打开该channel的Session对象。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**返回值：**
+
+| **类型** | **说明**                      |
+| -------- | ----------------------------- |
+| Session  | 该channel绑定的Session 对象。 |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaSession: secureElement.Session = null;
+@State nfcOmaChannel: secureElement.Channel = null;
+
+try {
+    // refer to Session.openBasicChannel for this.nfcOmaChannel
+    let ret = this.nfcOmaChannel.getSession();
+    if (ret) {
+        this.result = "get session successfully";
+    } else {
+        this.result = "get session failed";
+    }
+} catch (e) {
+    this.result = "getSession exception:" + e.message;
+}
+```
+
+## Channel. close
+
+close(): void
+
+关闭与SE的此channel。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaSession: secureElement.Session = null;
+@State nfcOmaChannel: secureElement.Channel = null;
+
+try {
+    // refer to Session.openBasicChannel for this.nfcOmaChannel
+    this.nfcOmaChannel.close();
+    this.result = "channel close successfully";
+} catch (e) {
+    this.result = "channel close exception:" + e.message;
+}
+```
+
+## Channel. isBasicChannel
+
+isBasicChannel(): boolean
+
+检查该channel是否为基本channel。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**返回值：**
+
+| **类型** | **说明**                                                     |
+| -------- | ------------------------------------------------------------ |
+| boolean  | true: 该channel是基本channel false：该channel不是基本channel 。 |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaChannel: secureElement.Channel = null;
+
+try {
+    // refer to Session.openBasicChannel for this.nfcOmaChannel
+    let ret = this.nfcOmaChannel.isBasicChannel();
+    if (ret) {
+        this.result = "isBasicChannel TRUE";
+    } else {
+        this.result = "isBasicChannel FALSE";
+    }
+} catch (e) {
+    this.result = "isBasicChannel异常:" + e.message;
+}
+```
+
+## Channel. isClosed
+
+isClosed(): boolean
+
+检查该channel是否为closed。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**返回值：**
+
+| **类型** | **说明**                                      |
+| -------- | --------------------------------------------- |
+| boolean  | true:channel是closed  false: 不是closed状态。 |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaChannel: secureElement.Channel = null;
+
+try {
+    // refer to Session.openBasicChannel for this.nfcOmaChannel
+    let ret = this.nfcOmaChannel.isClosed();
+    if (ret) {
+        this.result = "channel isClosed TRUE";
+    } else {
+        this.result = "channel isClosed False";
+    }
+} catch (e) {
+    this.result = "Channel isClosed exception:" + e.message;
+}
+```
+
+## Channel. getSelectResponse
+
+getSelectResponse():number[]
+
+返回从应用程序选择命令接收的数据，包括在applet选择时接收的状态字。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**返回值：**
+
+| **类型** | **说明**                                                     |
+| -------- | ------------------------------------------------------------ |
+| number[] | 返回从应用程序选择命令接收的数据，包括在applet选择时接收的状态字。 |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaChannel: secureElement.Channel = null;
+
+try {
+    // refer to Session.openBasicChannel for this.nfcOmaChannel
+    let ret = this.nfcOmaChannel.getSelectResponse();
+    if (ret) {
+        this.result = "getSelectResponse result:[";
+        for (let i = 0; i < ret.length; ++i) {
+            this.result += ret[i];
+            this.result += ' ';
+        }
+        this.result += ']';
+    } else {
+        this.result = "getSelectResponse result is null";
+    }
+} catch (e) {
+    this.result = "getSelectResponse exception:" + e.message;
+}
+```
+
+## Channel. transmit
+
+transmit(command: number[]): Promise<number[]>
+
+向SE发送APDU命令（根据ISO/IEC 7816）。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**参数：**
+
+| **参数名** | **类型** | **说明**                              |
+| ---------- | -------- | ------------------------------------- |
+| command    | number[] | 在该channel上被选择的applet AID数组。 |
+
+**返回值：**
+
+| **类型** | **说明**       |
+| -------- | -------------- |
+| number[] | 响应结果数组。 |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+| 3300103  | Illegal access rule exception.   |
+| 3300104  | Secure element IO exception.     |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaChannel: secureElement.Channel = null;
+
+try {
+    let command: number[] = [100, 200];
+    // refer to Session.openBasicChannel for this.nfcOmaChannel
+    let getPromise = this.nfcOmaChannel.transmit(command);
+    getPromise.then((data) => {
+        this.result = "transmit1 result:[";
+        for (let i = 0; i < data.length; ++i) {
+            this.result += data[i];
+            this.result += " ";
+        }
+        this.result += "]";
+    }).catch ((err) => {
+        this.result = "transmit1 exception:" + err.code;
+    })
+} catch (e) {
+    this.result = "transit1 exception:" + e.message;
+}
+```
+
+## Channel. transmit
+
+transmit(command: number[], callback: AsyncCallback<number[]>): void
+
+向SE发送APDU命令（根据ISO/IEC 7816）。
+
+**系统能力：**  SystemCapability.Communication.SecureElement
+
+**参数：**
+
+| **参数名** | **类型**                | **说明**                              |
+| ---------- | ----------------------- | ------------------------------------- |
+| command    | number[]                | 在该Channel上被选择的applet AID数组。 |
+| callback   | AsyncCallback<number[]> | 返回接收到的响应的回调，number数组。  |
+
+**错误码：**
+
+错误码的详细介绍请参见[SE错误码](../errorcodes/errorcode-se.md)。
+
+| 错误码ID | 错误信息                         |
+| -------- | -------------------------------- |
+| 3300101  | Illegal service state exception. |
+| 3300103  | Illegal access rule exception.   |
+| 3300104  | Secure element IO exception.     |
+
+**示例：**
+
+```js
+import secureElement from '@ohos.secureElement';
+
+@State result: string = '';
+@State nfcOmaChannel: secureElement.Channel = null;
+
+try {
+    let command: number[] = [100, 200];
+    // refer to Session.openBasicChannel for this.nfcOmaChannel
+    this.nfcOmaChannel.transmit(command, (error, data) => {
+        if (error) {
+            this.result = "transmit2 exception:" + JSON.stringify(error);
+            return;
+        }
+        this.result = "transmit2 result:[";
+        for (let i = 0; i < data.length; ++i) {
+            this.result += data[i];
+            this.result += " ";
+        }
+        this.result += "]";
+    });
+} catch (e) {
+    this.result = "transit2 exception:" + e.message;
+}
+```
diff --git a/zh-cn/application-dev/reference/errorcodes/errorcode-se.md b/zh-cn/application-dev/reference/errorcodes/errorcode-se.md
new file mode 100644
index 0000000000000000000000000000000000000000..de2043a99d6d0e5e783ee5aafba211a6961cc1c7
--- /dev/null
+++ b/zh-cn/application-dev/reference/errorcodes/errorcode-se.md
@@ -0,0 +1,85 @@
+# SE错误码
+
+> **说明：**
+>
+> 以下仅介绍本模块特有错误码，通用错误码请参考[通用错误码说明文档](errorcode-universal.md)。
+
+## 3300101
+
+**错误信息**
+
+Illegal service state exception.
+
+**错误描述**
+
+SE服务状态异常。
+
+**可能原因**
+
+1. SE服务状态已断开。
+
+**处理步骤**
+
+1. 关闭SE服务。
+
+2. 重新和SE服务建立连接。
+
+## 3300102
+
+**错误信息**
+
+No such element exception.
+
+**错误描述**
+
+没有这样的SE异常。
+
+**可能原因**
+
+1. 和SE服务建立通信异常。
+2. SE芯片通信异常。
+
+**处理步骤**
+
+1. 关闭SE服务后重新建立连接。
+2. 重启设备尝试。
+
+## 3300103
+
+**错误信息**
+
+Illegal access rule exception.
+
+**错误描述**
+
+无法获取访问控制规则异常。
+
+**可能原因**
+
+1. 安全单元上没有应用所依赖的访问规则。
+
+**处理步骤**
+
+1. 写入正确的访问规则到安全单元上。
+2. 关闭SE服务后重新建立连接。
+
+## 3300104
+
+**错误信息**
+
+Secure element IO exception.
+
+**错误描述**
+
+SE芯片IO异常。
+
+**可能原因**
+
+1. 和SE芯片通信异常。
+2. SE芯片状态异常。
+
+**处理步骤**
+
+1. 关闭SE服务后重新建立连接。
+
+2. 重启设备尝试。