diff --git a/packages/okx-wallet/src/lib/injected-okx-wallet.ts b/packages/okx-wallet/src/lib/injected-okx-wallet.ts
index aa967c5f3..913977579 100644
--- a/packages/okx-wallet/src/lib/injected-okx-wallet.ts
+++ b/packages/okx-wallet/src/lib/injected-okx-wallet.ts
@@ -1,3 +1,8 @@
+import type {
+  SignedMessage,
+  SignMessageParams,
+} from "@near-wallet-selector/core";
+
 export interface AccessKey {
   publicKey: string;
   secretKey: string;
@@ -70,4 +75,5 @@ export interface InjectedOkx {
   requestSignTransactions: (
     params: RequestSignTransactionsParams
   ) => Promise<RequestSignTransactionsResponse>;
+  signMessage: (params: SignMessageParams) => Promise<SignedMessage>;
 }
diff --git a/packages/okx-wallet/src/lib/okx-wallet.spec.ts b/packages/okx-wallet/src/lib/okx-wallet.spec.ts
index 56b45c01b..6ce71ab5c 100644
--- a/packages/okx-wallet/src/lib/okx-wallet.spec.ts
+++ b/packages/okx-wallet/src/lib/okx-wallet.spec.ts
@@ -49,6 +49,11 @@ const mockOkx = () => {
       requestSignTransactions: jest.fn().mockResolvedValue({
         txs: [{ signedTx: "signedTx" }],
       }),
+      signMessage: jest.fn().mockResolvedValue({
+        publickey: "publickey",
+        accountId: "accountId",
+        signature: "signature",
+      }),
     },
   };
 
@@ -131,3 +136,25 @@ describe("signAndSendTransactions", () => {
     expect(result.length).toEqual(transactions.length);
   });
 });
+
+describe("signMessage", () => {
+  it("signMessage in okx wallet", async () => {
+    const { wallet, injectedOkx } = await createOKXWallet();
+    await wallet.signIn({ contractId: "test.testnet" });
+    const result = await wallet.signMessage!({
+      message: "message",
+      recipient: "recipient",
+      nonce: Buffer.from(
+        "4268ebc14ff247f5450d4a8682bec3729a06d268f83b0cb363083ab05b65486b",
+        "hex"
+      ),
+    });
+
+    expect(injectedOkx!.signMessage).toHaveBeenCalled();
+    expect(result).toEqual({
+      publickey: "publickey",
+      accountId: "accountId",
+      signature: "signature",
+    });
+  });
+});
diff --git a/packages/okx-wallet/src/lib/okx-wallet.ts b/packages/okx-wallet/src/lib/okx-wallet.ts
index 05b4b5768..3b33da7f0 100644
--- a/packages/okx-wallet/src/lib/okx-wallet.ts
+++ b/packages/okx-wallet/src/lib/okx-wallet.ts
@@ -167,8 +167,13 @@ const OKXWallet: WalletBehaviourFactory<InjectedWallet> = async ({
       throw new Error(`Method not supported by ${metadata.name}`);
     },
 
-    async signMessage() {
-      throw new Error(`Method not supported by ${metadata.name}`);
+    async signMessage(message) {
+      try {
+        const signedMessage = await _state.wallet.signMessage(message);
+        return signedMessage;
+      } catch (error) {
+        throw new Error("sign Error");
+      }
     },
 
     async signAndSendTransaction({ signerId, receiverId, actions }) {
diff --git a/scripts/release-packages.bash b/scripts/release-packages.bash
index 14aeeece6..479b00cb5 100644
--- a/scripts/release-packages.bash
+++ b/scripts/release-packages.bash
@@ -27,3 +27,4 @@ npm publish dist/packages/ramper-wallet --tag "${TAG}" --otp "${OTP}"
 npm publish dist/packages/near-mobile-wallet --tag "${TAG}" --otp "${OTP}"
 npm publish dist/packages/mintbase-wallet --tag "${TAG}" --otp "${OTP}"
 npm publish dist/packages/bitget-wallet --tag "${TAG}" --otp "${OTP}"
+npm publish dist/packages/okx-wallet --tag "${TAG}" --otp "${OTP}"