diff --git a/src/modules/auth/strategies/jwt.strategy.ts b/src/modules/auth/strategies/jwt.strategy.ts
new file mode 100644
index 0000000..a4a05c0
--- /dev/null
+++ b/src/modules/auth/strategies/jwt.strategy.ts
@@ -0,0 +1,27 @@
+import { Injectable, UnauthorizedException } from "@nestjs/common";
+import { PassportStrategy } from "@nestjs/passport";
+import { Strategy, ExtractJwt } from "passport-jwt";
+import { JwtPayload } from "../auth.interface";
+import { UserService } from "../../user/user.service";
+
+@Injectable()
+export class JwtStrategy extends PassportStrategy(Strategy) {
+    constructor(
+        private readonly userService: UserService
+    ) {
+        super({
+            jwtFromRequest: ExtractJwt.fromAuthHeaderAsBearerToken(),
+            secretOrKey: 'nDSAR3+K4pLD+HIl9xWFY/n7maMxLwPTj5gscZvd9Vo=',
+        })
+    }
+
+    async validate(payload: JwtPayload) {
+        console.log(payload)
+        const { username } = payload
+        const entity = await this.userService.findByUserName(username)
+        if (!entity) {
+            throw new UnauthorizedException('用户不存在')
+        }
+        return entity
+    }
+}
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