diff --git a/packages/core/src/queries/user.test.ts b/packages/core/src/queries/user.test.ts
index 81c144325..465102621 100644
--- a/packages/core/src/queries/user.test.ts
+++ b/packages/core/src/queries/user.test.ts
@@ -23,6 +23,7 @@ import {
   updateUserById,
   deleteUserById,
   clearUserCustomDataById,
+  deleteUserIdentity,
 } from './user';
 
 const mockQuery: jest.MockedFunction<QueryType> = jest.fn();
@@ -375,4 +376,51 @@ describe('user query', () => {
 
     await clearUserCustomDataById(id);
   });
+
+  it('clearUserCustomDataById should throw when user can not be found by id', async () => {
+    const id = 'foo';
+    const expectSql = sql`
+      update ${table}
+      set ${fields.customData}='{}'::jsonb
+      where ${fields.id}=$1
+    `;
+
+    mockQuery.mockImplementationOnce(async (sql, values) => {
+      expectSqlAssert(sql, expectSql.sql);
+      expect(values).toEqual([id]);
+
+      return createMockQueryResult([]);
+    });
+
+    await expect(clearUserCustomDataById(id)).rejects.toThrowError();
+  });
+
+  it('deleteUserIdentity', async () => {
+    const userId = 'foo';
+    const connectorId = 'connector1';
+
+    const { connector1, ...restIdentities } = mockUser.identities;
+    const finalDbvalue = {
+      ...mockUser,
+      roleNames: JSON.stringify(mockUser.roleNames),
+      identities: JSON.stringify(restIdentities),
+      customData: JSON.stringify(mockUser.customData),
+    };
+
+    const expectSql = sql`
+      update ${table}
+      set ${fields.identities}=${fields.identities}::jsonb-$1
+      where ${fields.id}=$2
+      returning *
+    `;
+
+    mockQuery.mockImplementationOnce(async (sql, values) => {
+      expectSqlAssert(sql, expectSql.sql);
+      expect(values).toEqual([connectorId, mockUser.id]);
+
+      return createMockQueryResult([finalDbvalue]);
+    });
+
+    await expect(deleteUserIdentity(userId, connectorId)).resolves.toEqual(finalDbvalue);
+  });
 });
diff --git a/packages/core/src/queries/user.ts b/packages/core/src/queries/user.ts
index 0923827d5..0881f4d32 100644
--- a/packages/core/src/queries/user.ts
+++ b/packages/core/src/queries/user.ts
@@ -137,3 +137,11 @@ export const clearUserCustomDataById = async (id: string) => {
     throw new UpdateError(Users, { set: { customData: {} }, where: { id } });
   }
 };
+
+export const deleteUserIdentity = async (userId: string, connectorId: string) =>
+  pool.one<User>(sql`
+    update ${table}
+    set ${fields.identities}=${fields.identities}::jsonb-${connectorId}
+    where ${fields.id}=${userId}
+    returning *
+  `);
diff --git a/packages/core/src/routes/admin-user.test.ts b/packages/core/src/routes/admin-user.test.ts
index a4594be94..7f49f640e 100644
--- a/packages/core/src/routes/admin-user.test.ts
+++ b/packages/core/src/routes/admin-user.test.ts
@@ -7,6 +7,7 @@ import {
   hasUser,
   findUserById,
   updateUserById,
+  deleteUserIdentity,
   deleteUserById,
   clearUserCustomDataById,
 } from '@/queries/user';
@@ -38,18 +39,15 @@ jest.mock('@/queries/user', () => ({
       ...data,
     })
   ),
-  deleteUserById: jest.fn(async (_): Promise<void> => {
-    /* Note: Do nothing */
-  }),
+  deleteUserById: jest.fn(),
   insertUser: jest.fn(
     async (user: CreateUser): Promise<User> => ({
       ...mockUser,
       ...user,
     })
   ),
-  clearUserCustomDataById: jest.fn(async (_): Promise<void> => {
-    /* Note: Do nothing */
-  }),
+  clearUserCustomDataById: jest.fn(),
+  deleteUserIdentity: jest.fn(),
 }));
 
 jest.mock('@/lib/user', () => ({
@@ -372,4 +370,47 @@ describe('adminUserRoutes', () => {
     expect(findUserById).toHaveBeenCalledTimes(1);
     expect(clearUserCustomDataById).not.toHaveBeenCalled();
   });
+
+  it('DELETE /users/:userId/identities/:connectorId should throw if user not found', async () => {
+    const notExistedUserId = 'notExisitedUserId';
+    const arbitraryConnectorId = 'arbitraryConnectorId';
+    const mockedFindUserById = findUserById as jest.Mock;
+    mockedFindUserById.mockImplementationOnce((userId) => {
+      if (userId === notExistedUserId) {
+        throw new Error(' ');
+      }
+    });
+    await expect(
+      userRequest.delete(`/users/${notExistedUserId}/identities/${arbitraryConnectorId}`)
+    ).resolves.toHaveProperty('status', 500);
+    expect(deleteUserIdentity).not.toHaveBeenCalled();
+  });
+
+  it('DELETE /users/:userId/identities/:connectorId should throw if user found and connector is not found', async () => {
+    const arbitraryUserId = 'arbitraryUserId';
+    const notExistedConnectorId = 'notExistedConnectorId';
+    const mockedFindUserById = findUserById as jest.Mock;
+    mockedFindUserById.mockImplementationOnce((userId) => {
+      if (userId === arbitraryUserId) {
+        return { identities: { connector1: {}, connector2: {} } };
+      }
+    });
+    await expect(
+      userRequest.delete(`/users/${arbitraryUserId}/identities/${notExistedConnectorId}`)
+    ).resolves.toHaveProperty('status', 404);
+    expect(deleteUserIdentity).not.toHaveBeenCalled();
+  });
+
+  it('DELETE /users/:userId/identities/:connectorId', async () => {
+    const arbitraryUserId = 'arbitraryUserId';
+    const arbitraryConnectorId = 'arbitraryConnectorId';
+    const mockedFindUserById = findUserById as jest.Mock;
+    mockedFindUserById.mockImplementationOnce((userId) => {
+      if (userId === arbitraryUserId) {
+        return { identities: { connector1: {}, connector2: {}, arbitraryConnectorId: {} } };
+      }
+    });
+    await userRequest.delete(`/users/${arbitraryUserId}/identities/${arbitraryConnectorId}`);
+    expect(deleteUserIdentity).toHaveBeenCalledWith(arbitraryUserId, arbitraryConnectorId);
+  });
 });
diff --git a/packages/core/src/routes/admin-user.ts b/packages/core/src/routes/admin-user.ts
index 6f757bd8d..a9a0adbe1 100644
--- a/packages/core/src/routes/admin-user.ts
+++ b/packages/core/src/routes/admin-user.ts
@@ -1,4 +1,5 @@
 import { arbitraryObjectGuard, userInfoSelectFields } from '@logto/schemas';
+import { has } from '@silverhand/essentials';
 import pick from 'lodash.pick';
 import { InvalidInputError } from 'slonik';
 import { object, string } from 'zod';
@@ -11,6 +12,7 @@ import { findRolesByRoleNames } from '@/queries/roles';
 import {
   clearUserCustomDataById,
   deleteUserById,
+  deleteUserIdentity,
   findUsers,
   countUsers,
   findUserById,
@@ -264,4 +266,25 @@ export default function adminUserRoutes<T extends AuthedRouter>(router: T) {
       return next();
     }
   );
+
+  router.delete(
+    '/users/:userId/identities/:connectorId',
+    koaGuard({ params: object({ userId: string(), connectorId: string() }) }),
+    async (ctx, next) => {
+      const {
+        params: { userId, connectorId },
+      } = ctx.guard;
+
+      const { identities } = await findUserById(userId);
+
+      if (!has(identities, connectorId)) {
+        throw new RequestError({ code: 'user.identity_not_exists', status: 404 });
+      }
+
+      const updatedUser = await deleteUserIdentity(userId, connectorId);
+      ctx.body = pick(updatedUser, ...userInfoSelectFields);
+
+      return next();
+    }
+  );
 }
diff --git a/packages/core/src/utils/mock.ts b/packages/core/src/utils/mock.ts
index e87ca89be..91e861274 100644
--- a/packages/core/src/utils/mock.ts
+++ b/packages/core/src/utils/mock.ts
@@ -33,7 +33,9 @@ export const mockUser: User = {
   passwordEncryptionSalt: null,
   name: null,
   avatar: null,
-  identities: {},
+  identities: {
+    connector1: { userId: 'connector1', details: {} },
+  },
   customData: {},
 };