diff --git a/api/@ohos.net.http.d.ts b/api/@ohos.net.http.d.ts
index 72f99a8ca..da8ec2d5c 100644
--- a/api/@ohos.net.http.d.ts
+++ b/api/@ohos.net.http.d.ts
@@ -99,6 +99,37 @@ declare namespace http {
      * @param options Optional parameters {@link HttpRequestOptions}.
      * @param callback Returns {@link HttpResponse}.
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 401 - Parameter error.
+     * @throws {BusinessError} 201 - Permission denied.
+     * @throws {BusinessError} 2300001 - Unsupported protocol.
+     * @throws {BusinessError} 2300003 - URL using bad/illegal format or missing URL.
+     * @throws {BusinessError} 2300005 - Couldn't resolve proxy name.
+     * @throws {BusinessError} 2300006 - Couldn't resolve host name.
+     * @throws {BusinessError} 2300007 - Couldn't connect to server.
+     * @throws {BusinessError} 2300008 - Weird server reply.
+     * @throws {BusinessError} 2300009 - Access denied to remote resource.
+     * @throws {BusinessError} 2300016 - Error in the HTTP2 framing layer.
+     * @throws {BusinessError} 2300018 - Transferred a partial file.
+     * @throws {BusinessError} 2300023 - Failed writing received data to disk/application.
+     * @throws {BusinessError} 2300025 - Upload failed.
+     * @throws {BusinessError} 2300026 - Failed to open/read local data from file/application.
+     * @throws {BusinessError} 2300027 - Out of memory.
+     * @throws {BusinessError} 2300028 - Timeout was reached.
+     * @throws {BusinessError} 2300047 - Number of redirects hit maximum amount.
+     * @throws {BusinessError} 2300052 - Server returned nothing (no headers, no data).
+     * @throws {BusinessError} 2300055 - Failed sending data to the peer.
+     * @throws {BusinessError} 2300056 - Failure when receiving data from the peer.
+     * @throws {BusinessError} 2300058 - Problem with the local SSL certificate.
+     * @throws {BusinessError} 2300059 - Couldn't use specified SSL cipher.
+     * @throws {BusinessError} 2300060 - SSL peer certificate or SSH remote key was not OK.
+     * @throws {BusinessError} 2300061 - Unrecognized or bad HTTP Content or Transfer-Encoding.
+     * @throws {BusinessError} 2300063 - Maximum file size exceeded.
+     * @throws {BusinessError} 2300070 - Disk full or allocation exceeded.
+     * @throws {BusinessError} 2300073 - Remote file already exists.
+     * @throws {BusinessError} 2300077 - Problem with the SSL CA cert (path? access rights?).
+     * @throws {BusinessError} 2300078 - Remote file not found.
+     * @throws {BusinessError} 2300094 - An authentication function returned an error.
+     * @throws {BusinessError} 2300999 - Unknown Other Error.
      */
     request(url: string, callback: AsyncCallback<HttpResponse>): void;
     request(url: string, options: HttpRequestOptions, callback: AsyncCallback<HttpResponse>): void;
diff --git a/api/@ohos.net.socket.d.ts b/api/@ohos.net.socket.d.ts
index 4e58a095c..16c7a5126 100644
--- a/api/@ohos.net.socket.d.ts
+++ b/api/@ohos.net.socket.d.ts
@@ -135,6 +135,8 @@ declare namespace socket {
      *
      * @param address Destination address. {@link NetAddress}
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 401 - Parameter error.
+     * @throws {BusinessError} 201 - Permission denied.
      */
     bind(address: NetAddress, callback: AsyncCallback<void>): void;
     bind(address: NetAddress): Promise<void>;
@@ -144,6 +146,8 @@ declare namespace socket {
      *
      * @param options Optional parameters {@link UDPSendOptions}.
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 401 - Parameter error.
+     * @throws {BusinessError} 201 - Permission denied.
      */
     send(options: UDPSendOptions, callback: AsyncCallback<void>): void;
     send(options: UDPSendOptions): Promise<void>;
@@ -151,6 +155,7 @@ declare namespace socket {
     /**
      * Closes a UDPSocket connection.
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 201 - Permission denied.
      */
     close(callback: AsyncCallback<void>): void;
     close(): Promise<void>;
@@ -160,6 +165,7 @@ declare namespace socket {
      *
      * @param callback Callback used to return the result. {@link SocketStateBase}.
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 201 - Permission denied.
      */
     getState(callback: AsyncCallback<SocketStateBase>): void;
     getState(): Promise<SocketStateBase>;
@@ -169,6 +175,8 @@ declare namespace socket {
      *
      * @param options Optional parameters {@link UDPExtraOptions}.
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 401 - Parameter error.
+     * @throws {BusinessError} 201 - Permission denied.
      */
     setExtraOptions(options: UDPExtraOptions, callback: AsyncCallback<void>): void;
     setExtraOptions(options: UDPExtraOptions): Promise<void>;
@@ -256,6 +264,8 @@ declare namespace socket {
      *
      * @param address Destination address. {@link NetAddress}
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 401 - Parameter error.
+     * @throws {BusinessError} 201 - Permission denied.
      */
     bind(address: NetAddress, callback: AsyncCallback<void>): void;
     bind(address: NetAddress): Promise<void>;
@@ -265,6 +275,8 @@ declare namespace socket {
      *
      * @param options Optional parameters {@link TCPConnectOptions}.
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 401 - Parameter error.
+     * @throws {BusinessError} 201 - Permission denied.
      */
     connect(options: TCPConnectOptions, callback: AsyncCallback<void>): void;
     connect(options: TCPConnectOptions): Promise<void>;
@@ -274,6 +286,8 @@ declare namespace socket {
      *
      * @param options Optional parameters {@link TCPSendOptions}.
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 401 - Parameter error.
+     * @throws {BusinessError} 201 - Permission denied.
      */
     send(options: TCPSendOptions, callback: AsyncCallback<void>): void;
     send(options: TCPSendOptions): Promise<void>;
@@ -281,6 +295,7 @@ declare namespace socket {
     /**
      * Closes a TCPSocket connection.
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 201 - Permission denied.
      */
     close(callback: AsyncCallback<void>): void;
     close(): Promise<void>;
@@ -290,6 +305,7 @@ declare namespace socket {
      *
      * @param callback Callback used to return the result. {@link NetAddress}
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 201 - Permission denied.
      */
     getRemoteAddress(callback: AsyncCallback<NetAddress>): void;
     getRemoteAddress(): Promise<NetAddress>;
@@ -299,6 +315,7 @@ declare namespace socket {
      *
      * @param callback Callback used to return the result. {@link SocketStateBase}
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 201 - Permission denied.
      */
     getState(callback: AsyncCallback<SocketStateBase>): void;
     getState(): Promise<SocketStateBase>;
@@ -308,6 +325,8 @@ declare namespace socket {
      *
      * @param options Optional parameters {@link TCPExtraOptions}.
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 401 - Parameter error.
+     * @throws {BusinessError} 201 - Permission denied.
      */
     setExtraOptions(options: TCPExtraOptions, callback: AsyncCallback<void>): void;
     setExtraOptions(options: TCPExtraOptions): Promise<void>;
diff --git a/api/@ohos.net.webSocket.d.ts b/api/@ohos.net.webSocket.d.ts
index e71c31918..d06587146 100644
--- a/api/@ohos.net.webSocket.d.ts
+++ b/api/@ohos.net.webSocket.d.ts
@@ -53,6 +53,8 @@ declare namespace webSocket {
      * @param options Optional parameters {@link WebSocketRequestOptions}.
      * @param callback Returns callback used to return the execution result.
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 401 - Parameter error.
+     * @throws {BusinessError} 201 - Permission denied.
      */
     connect(url: string, callback: AsyncCallback<boolean>): void;
     connect(url: string, options: WebSocketRequestOptions, callback: AsyncCallback<boolean>): void;
@@ -64,6 +66,8 @@ declare namespace webSocket {
      * @param data Data to send. It can be a string(API 6) or an ArrayBuffer(API 8).
      * @param callback Returns callback used to return the execution result.
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 401 - Parameter error.
+     * @throws {BusinessError} 201 - Permission denied.
      */
     send(data: string | ArrayBuffer, callback: AsyncCallback<boolean>): void;
     send(data: string | ArrayBuffer): Promise<boolean>;
@@ -74,6 +78,8 @@ declare namespace webSocket {
      * @param options Optional parameters {@link WebSocketCloseOptions}.
      * @param callback Returns callback used to return the execution result.
      * @permission ohos.permission.INTERNET
+     * @throws {BusinessError} 401 - Parameter error.
+     * @throws {BusinessError} 201 - Permission denied.
      */
     close(callback: AsyncCallback<boolean>): void;
     close(options: WebSocketCloseOptions, callback: AsyncCallback<boolean>): void;