diff --git a/backend/package-lock.json b/backend/package-lock.json
index 32f17f7..11a76b9 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -8,6 +8,8 @@
       "name": "fromis9-backend",
       "version": "2.0.0",
       "dependencies": {
+        "@fastify/jwt": "^10.0.0",
+        "bcrypt": "^6.0.0",
         "dayjs": "^1.11.13",
         "fastify": "^5.2.1",
         "fastify-plugin": "^5.0.1",
@@ -88,6 +90,29 @@
       ],
       "license": "MIT"
     },
+    "node_modules/@fastify/jwt": {
+      "version": "10.0.0",
+      "resolved": "https://registry.npmjs.org/@fastify/jwt/-/jwt-10.0.0.tgz",
+      "integrity": "sha512-2Qka3NiyNNcsfejMUvyzot1T4UYIzzcbkFGDdVyrl344fRZ/WkD6VFXOoXhxe2Pzf3LpJNkoSxUM4Ru4DVgkYA==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/fastify"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/fastify"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "@fastify/error": "^4.2.0",
+        "@lukeed/ms": "^2.0.2",
+        "fast-jwt": "^6.0.2",
+        "fastify-plugin": "^5.0.1",
+        "steed": "^1.1.3"
+      }
+    },
     "node_modules/@fastify/merge-json-schemas": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/@fastify/merge-json-schemas/-/merge-json-schemas-0.2.1.tgz",
@@ -133,6 +158,15 @@
       "integrity": "sha512-eUgLqrMf8nJkZxT24JvVRrQya1vZkQh8BBeYNwGDqa5I0VUi8ACx7uFvAaLxintokpTenkK6DASvo/bvNbBGow==",
       "license": "MIT"
     },
+    "node_modules/@lukeed/ms": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/@lukeed/ms/-/ms-2.0.2.tgz",
+      "integrity": "sha512-9I2Zn6+NJLfaGoz9jN3lpwDgAYvfGeNYdbAIjJOqzs4Tpc+VU3Jqq4IofSUBKajiDS8k9fZIg18/z13mpk1bsA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/@pinojs/redact": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/@pinojs/redact/-/redact-0.4.0.tgz",
@@ -178,6 +212,18 @@
         }
       }
     },
+    "node_modules/asn1.js": {
+      "version": "5.4.1",
+      "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-5.4.1.tgz",
+      "integrity": "sha512-+I//4cYPccV8LdmBLiX8CYvf9Sp3vQsrqu2QNXRcrbiWvcx/UdlFiqUJJzxRQxgsZmvhXhn4cSKeSmoFjVdupA==",
+      "license": "MIT",
+      "dependencies": {
+        "bn.js": "^4.0.0",
+        "inherits": "^2.0.1",
+        "minimalistic-assert": "^1.0.0",
+        "safer-buffer": "^2.1.0"
+      }
+    },
     "node_modules/atomic-sleep": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/atomic-sleep/-/atomic-sleep-1.0.0.tgz",
@@ -206,6 +252,26 @@
         "node": ">= 6.0.0"
       }
     },
+    "node_modules/bcrypt": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/bcrypt/-/bcrypt-6.0.0.tgz",
+      "integrity": "sha512-cU8v/EGSrnH+HnxV2z0J7/blxH8gq7Xh2JFT6Aroax7UohdmiJJlxApMxtKfuI7z68NvvVcmR78k2LbT6efhRg==",
+      "hasInstallScript": true,
+      "license": "MIT",
+      "dependencies": {
+        "node-addon-api": "^8.3.0",
+        "node-gyp-build": "^4.8.4"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/bn.js": {
+      "version": "4.12.2",
+      "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.12.2.tgz",
+      "integrity": "sha512-n4DSx829VRTRByMRGdjQ9iqsN0Bh4OolPsFnaZBLcbi8iXcB+kJ9s7EnRt4wILZNV3kPLHkRVfOc/HvhC3ovDw==",
+      "license": "MIT"
+    },
     "node_modules/cluster-key-slot": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/cluster-key-slot/-/cluster-key-slot-1.1.2.tgz",
@@ -269,6 +335,15 @@
         "node": ">=6"
       }
     },
+    "node_modules/ecdsa-sig-formatter": {
+      "version": "1.0.11",
+      "resolved": "https://registry.npmjs.org/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.11.tgz",
+      "integrity": "sha512-nagl3RYrbNv6kQkeJIpt6NJZy8twLB/2vtz6yN9Z4vRKHN4/QZJIEbqohALSgwKdnksuY3k5Addp5lg8sVoVcQ==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "safe-buffer": "^5.0.1"
+      }
+    },
     "node_modules/fast-decode-uri-component": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/fast-decode-uri-component/-/fast-decode-uri-component-1.0.1.tgz",
@@ -305,6 +380,21 @@
         "rfdc": "^1.2.0"
       }
     },
+    "node_modules/fast-jwt": {
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/fast-jwt/-/fast-jwt-6.1.0.tgz",
+      "integrity": "sha512-cGK/TXlud8INL49Iv7yRtZy0PHzNJId1shfqNCqdF0gOlWiy+1FPgjxX+ZHp/CYxFYDaoNnxeYEGzcXSkahUEQ==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@lukeed/ms": "^2.0.2",
+        "asn1.js": "^5.4.1",
+        "ecdsa-sig-formatter": "^1.0.11",
+        "mnemonist": "^0.40.0"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
     "node_modules/fast-querystring": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/fast-querystring/-/fast-querystring-1.1.2.tgz",
@@ -330,6 +420,18 @@
       ],
       "license": "BSD-3-Clause"
     },
+    "node_modules/fastfall": {
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/fastfall/-/fastfall-1.5.1.tgz",
+      "integrity": "sha512-KH6p+Z8AKPXnmA7+Iz2Lh8ARCMr+8WNPVludm1LGkZoD2MjY6LVnRMtTKhkdzI+jr0RzQWXKzKyBJm1zoHEL4Q==",
+      "license": "MIT",
+      "dependencies": {
+        "reusify": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/fastify": {
       "version": "5.7.1",
       "resolved": "https://registry.npmjs.org/fastify/-/fastify-5.7.1.tgz",
@@ -379,6 +481,16 @@
       ],
       "license": "MIT"
     },
+    "node_modules/fastparallel": {
+      "version": "2.4.1",
+      "resolved": "https://registry.npmjs.org/fastparallel/-/fastparallel-2.4.1.tgz",
+      "integrity": "sha512-qUmhxPgNHmvRjZKBFUNI0oZuuH9OlSIOXmJ98lhKPxMZZ7zS/Fi0wRHOihDSz0R1YiIOjxzOY4bq65YTcdBi2Q==",
+      "license": "ISC",
+      "dependencies": {
+        "reusify": "^1.0.4",
+        "xtend": "^4.0.2"
+      }
+    },
     "node_modules/fastq": {
       "version": "1.20.1",
       "resolved": "https://registry.npmjs.org/fastq/-/fastq-1.20.1.tgz",
@@ -388,6 +500,16 @@
         "reusify": "^1.0.4"
       }
     },
+    "node_modules/fastseries": {
+      "version": "1.7.2",
+      "resolved": "https://registry.npmjs.org/fastseries/-/fastseries-1.7.2.tgz",
+      "integrity": "sha512-dTPFrPGS8SNSzAt7u/CbMKCJ3s01N04s4JFbORHcmyvVfVKmbhMD1VtRbh5enGHxkaQDqWyLefiKOGGmohGDDQ==",
+      "license": "ISC",
+      "dependencies": {
+        "reusify": "^1.0.0",
+        "xtend": "^4.0.0"
+      }
+    },
     "node_modules/find-my-way": {
       "version": "9.4.0",
       "resolved": "https://registry.npmjs.org/find-my-way/-/find-my-way-9.4.0.tgz",
@@ -427,6 +549,12 @@
         "url": "https://opencollective.com/express"
       }
     },
+    "node_modules/inherits": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+      "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
+      "license": "ISC"
+    },
     "node_modules/ioredis": {
       "version": "5.9.2",
       "resolved": "https://registry.npmjs.org/ioredis/-/ioredis-5.9.2.tgz",
@@ -561,6 +689,21 @@
         "url": "https://github.com/sponsors/wellwelwel"
       }
     },
+    "node_modules/minimalistic-assert": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz",
+      "integrity": "sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A==",
+      "license": "ISC"
+    },
+    "node_modules/mnemonist": {
+      "version": "0.40.3",
+      "resolved": "https://registry.npmjs.org/mnemonist/-/mnemonist-0.40.3.tgz",
+      "integrity": "sha512-Vjyr90sJ23CKKH/qPAgUKicw/v6pRoamxIEDFOF8uSgFME7DqPRpHgRTejWVjkdGg5dXj0/NyxZHZ9bcjH+2uQ==",
+      "license": "MIT",
+      "dependencies": {
+        "obliterator": "^2.0.4"
+      }
+    },
     "node_modules/ms": {
       "version": "2.1.3",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
@@ -599,6 +742,15 @@
         "node": ">=8.0.0"
       }
     },
+    "node_modules/node-addon-api": {
+      "version": "8.5.0",
+      "resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-8.5.0.tgz",
+      "integrity": "sha512-/bRZty2mXUIFY/xU5HLvveNHlswNJej+RnxBjOMkidWfwZzgTbPG1E3K5TOxRLOR+5hX7bSofy8yf1hZevMS8A==",
+      "license": "MIT",
+      "engines": {
+        "node": "^18 || ^20 || >= 21"
+      }
+    },
     "node_modules/node-cron": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/node-cron/-/node-cron-3.0.3.tgz",
@@ -611,6 +763,23 @@
         "node": ">=6.0.0"
       }
     },
+    "node_modules/node-gyp-build": {
+      "version": "4.8.4",
+      "resolved": "https://registry.npmjs.org/node-gyp-build/-/node-gyp-build-4.8.4.tgz",
+      "integrity": "sha512-LA4ZjwlnUblHVgq0oBF3Jl/6h/Nvs5fzBLwdEF4nuxnFdsfajde4WfxtJr3CaiH+F6ewcIB/q4jQ4UzPyid+CQ==",
+      "license": "MIT",
+      "bin": {
+        "node-gyp-build": "bin.js",
+        "node-gyp-build-optional": "optional.js",
+        "node-gyp-build-test": "build-test.js"
+      }
+    },
+    "node_modules/obliterator": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/obliterator/-/obliterator-2.0.5.tgz",
+      "integrity": "sha512-42CPE9AhahZRsMNslczq0ctAEtqk8Eka26QofnqC346BZdHDySk3LWka23LI7ULIw11NmltpiLagIq8gBozxTw==",
+      "license": "MIT"
+    },
     "node_modules/on-exit-leak-free": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/on-exit-leak-free/-/on-exit-leak-free-2.1.2.tgz",
@@ -743,6 +912,26 @@
       "integrity": "sha512-q1b3N5QkRUWUl7iyylaaj3kOpIT0N2i9MqIEQXP73GVsN9cw3fdx8X63cEmWhJGi2PPCF23Ijp7ktmd39rawIA==",
       "license": "MIT"
     },
+    "node_modules/safe-buffer": {
+      "version": "5.2.1",
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT"
+    },
     "node_modules/safe-regex2": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/safe-regex2/-/safe-regex2-5.0.0.tgz",
@@ -849,6 +1038,19 @@
       "integrity": "sha512-qoRRSyROncaz1z0mvYqIE4lCd9p2R90i6GxW3uZv5ucSu8tU7B5HXUP1gG8pVZsYNVaXjk8ClXHPttLyxAL48A==",
       "license": "MIT"
     },
+    "node_modules/steed": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/steed/-/steed-1.1.3.tgz",
+      "integrity": "sha512-EUkci0FAUiE4IvGTSKcDJIQ/eRUP2JJb56+fvZ4sdnguLTqIdKjSxUe138poW8mkvKWXW2sFPrgTsxqoISnmoA==",
+      "license": "MIT",
+      "dependencies": {
+        "fastfall": "^1.5.0",
+        "fastparallel": "^2.2.0",
+        "fastq": "^1.3.0",
+        "fastseries": "^1.7.0",
+        "reusify": "^1.0.0"
+      }
+    },
     "node_modules/thread-stream": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/thread-stream/-/thread-stream-4.0.0.tgz",
@@ -878,6 +1080,15 @@
       "bin": {
         "uuid": "dist/bin/uuid"
       }
+    },
+    "node_modules/xtend": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.4"
+      }
     }
   }
 }
diff --git a/backend/package.json b/backend/package.json
index fce3e25..b3d49c3 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -7,11 +7,13 @@
     "dev": "node --watch src/server.js"
   },
   "dependencies": {
+    "@fastify/jwt": "^10.0.0",
+    "bcrypt": "^6.0.0",
+    "dayjs": "^1.11.13",
     "fastify": "^5.2.1",
     "fastify-plugin": "^5.0.1",
-    "mysql2": "^3.12.0",
     "ioredis": "^5.4.2",
-    "node-cron": "^3.0.3",
-    "dayjs": "^1.11.13"
+    "mysql2": "^3.12.0",
+    "node-cron": "^3.0.3"
   }
 }
diff --git a/backend/src/app.js b/backend/src/app.js
index d3e773f..1b19310 100644
--- a/backend/src/app.js
+++ b/backend/src/app.js
@@ -4,10 +4,14 @@ import config from './config/index.js';
 // 플러그인
 import dbPlugin from './plugins/db.js';
 import redisPlugin from './plugins/redis.js';
+import authPlugin from './plugins/auth.js';
 import youtubeBotPlugin from './services/youtube/index.js';
 import xBotPlugin from './services/x/index.js';
 import schedulerPlugin from './plugins/scheduler.js';
 
+// 라우트
+import adminRoutes from './routes/admin/index.js';
+
 export async function buildApp(opts = {}) {
   const fastify = Fastify({
     logger: {
@@ -22,10 +26,14 @@ export async function buildApp(opts = {}) {
   // 플러그인 등록 (순서 중요)
   await fastify.register(dbPlugin);
   await fastify.register(redisPlugin);
+  await fastify.register(authPlugin);
   await fastify.register(youtubeBotPlugin);
   await fastify.register(xBotPlugin);
   await fastify.register(schedulerPlugin);
 
+  // 라우트 등록
+  await fastify.register(adminRoutes, { prefix: '/api/admin' });
+
   // 헬스 체크 엔드포인트
   fastify.get('/api/health', async () => {
     return { status: 'ok', timestamp: new Date().toISOString() };
diff --git a/backend/src/config/index.js b/backend/src/config/index.js
index 729017f..ed94744 100644
--- a/backend/src/config/index.js
+++ b/backend/src/config/index.js
@@ -19,4 +19,8 @@ export default {
   youtube: {
     apiKey: process.env.YOUTUBE_API_KEY,
   },
+  jwt: {
+    secret: process.env.JWT_SECRET || 'fromis9-admin-secret-key-2026',
+    expiresIn: '30d',
+  },
 };
diff --git a/backend/src/plugins/auth.js b/backend/src/plugins/auth.js
new file mode 100644
index 0000000..8908bc0
--- /dev/null
+++ b/backend/src/plugins/auth.js
@@ -0,0 +1,26 @@
+import fp from 'fastify-plugin';
+import fastifyJwt from '@fastify/jwt';
+import config from '../config/index.js';
+
+async function authPlugin(fastify, opts) {
+  // JWT 플러그인 등록
+  await fastify.register(fastifyJwt, {
+    secret: config.jwt.secret,
+    sign: {
+      expiresIn: config.jwt.expiresIn,
+    },
+  });
+
+  // 인증 데코레이터
+  fastify.decorate('authenticate', async function (request, reply) {
+    try {
+      await request.jwtVerify();
+    } catch (err) {
+      reply.status(401).send({ error: '인증이 필요합니다.' });
+    }
+  });
+}
+
+export default fp(authPlugin, {
+  name: 'auth',
+});
diff --git a/backend/src/routes/admin/auth.js b/backend/src/routes/admin/auth.js
new file mode 100644
index 0000000..47ce3d0
--- /dev/null
+++ b/backend/src/routes/admin/auth.js
@@ -0,0 +1,61 @@
+import bcrypt from 'bcrypt';
+
+/**
+ * 어드민 인증 라우트
+ */
+export default async function adminAuthRoutes(fastify, opts) {
+  /**
+   * POST /api/admin/login
+   * 관리자 로그인
+   */
+  fastify.post('/login', async (request, reply) => {
+    const { username, password } = request.body || {};
+
+    if (!username || !password) {
+      return reply.status(400).send({ error: '아이디와 비밀번호를 입력해주세요.' });
+    }
+
+    try {
+      const [users] = await fastify.db.query(
+        'SELECT * FROM admin_users WHERE username = ?',
+        [username]
+      );
+
+      if (users.length === 0) {
+        return reply.status(401).send({ error: '아이디 또는 비밀번호가 올바르지 않습니다.' });
+      }
+
+      const user = users[0];
+      const isValidPassword = await bcrypt.compare(password, user.password_hash);
+
+      if (!isValidPassword) {
+        return reply.status(401).send({ error: '아이디 또는 비밀번호가 올바르지 않습니다.' });
+      }
+
+      // JWT 토큰 생성
+      const token = fastify.jwt.sign({
+        id: user.id,
+        username: user.username,
+      });
+
+      return {
+        message: '로그인 성공',
+        token,
+        user: { id: user.id, username: user.username },
+      };
+    } catch (err) {
+      fastify.log.error(err);
+      return reply.status(500).send({ error: '로그인 처리 중 오류가 발생했습니다.' });
+    }
+  });
+
+  /**
+   * GET /api/admin/verify
+   * 토큰 검증
+   */
+  fastify.get('/verify', {
+    preHandler: [fastify.authenticate],
+  }, async (request, reply) => {
+    return { valid: true, user: request.user };
+  });
+}
diff --git a/backend/src/routes/admin/index.js b/backend/src/routes/admin/index.js
new file mode 100644
index 0000000..3ecf453
--- /dev/null
+++ b/backend/src/routes/admin/index.js
@@ -0,0 +1,9 @@
+import authRoutes from './auth.js';
+
+/**
+ * 어드민 라우트 통합
+ */
+export default async function adminRoutes(fastify, opts) {
+  // 인증 라우트 (prefix 없음)
+  fastify.register(authRoutes);
+}