diff --git a/Projects/Feature/Sources/Extension/GOMSRefreshToken.swift b/Projects/Feature/Sources/Extension/GOMSRefreshToken.swift
index 2c01f60a..5e68e9b6 100644
--- a/Projects/Feature/Sources/Extension/GOMSRefreshToken.swift
+++ b/Projects/Feature/Sources/Extension/GOMSRefreshToken.swift
@@ -6,6 +6,8 @@
 //  Copyright © 2026 HARIBO. All rights reserved.
 //
 
+import UIKit
+import Foundation
 import Moya
 import Service
 
@@ -68,17 +70,35 @@ public final class GOMSRefreshToken {
     }
 
     private func updateKeychainToken() {
+        let newAccessToken = reissuanceData?.accessToken ?? ""
+        let newRefreshToken = reissuanceData?.refreshToken ?? ""
 
         let accessTokenUpdated = keychain.updateItem(
-            token: reissuanceData?.accessToken ?? "",
+            token: newAccessToken,
             key: Const.KeyChainKey.accessToken
         )
 
         let refreshTokenUpdated = keychain.updateItem(
-            token: reissuanceData?.refreshToken ?? "",
+            token: newRefreshToken,
             key: Const.KeyChainKey.refreshToken
         )
 
+        // 새 accessToken의 JWT payload에서 role을 파싱해 authority 키체인도 갱신한다.
+        // 서버가 DB에서 role을 변경한 경우, 새로 발급된 토큰에는 변경된 role이 담기므로
+        // 이 시점에 authority를 덮어써야 앱이 최신 권한을 반영할 수 있다.
+        if let payload = newAccessToken.split(separator: ".").dropFirst().first {
+            let base64url = String(payload)
+            let base64 = base64url
+                .replacingOccurrences(of: "-", with: "+")
+                .replacingOccurrences(of: "_", with: "/")
+            let paddedPayload = base64 + String(repeating: "=", count: (4 - base64.count % 4) % 4)
+            if let data = Data(base64Encoded: paddedPayload),
+               let json = try? JSONSerialization.jsonObject(with: data) as? [String: Any],
+               let role = json["role"] as? String {
+                keychain.create(key: Const.KeyChainKey.authority, token: role)
+            }
+        }
+
         if accessTokenUpdated && refreshTokenUpdated {
             print("keychain update success")
         } else {
diff --git a/Projects/Feature/Sources/Scene/Main/Admin/View/AdminMainViewController.swift b/Projects/Feature/Sources/Scene/Main/Admin/View/AdminMainViewController.swift
index 0142aac2..b9e84015 100644
--- a/Projects/Feature/Sources/Scene/Main/Admin/View/AdminMainViewController.swift
+++ b/Projects/Feature/Sources/Scene/Main/Admin/View/AdminMainViewController.swift
@@ -151,7 +151,7 @@ public class AdminMainViewController: BaseViewController, UICollectionViewDataSo
         super.viewWillAppear(animated)
         isVisible = true
         isClockOn = UserDefaults.standard.bool(forKey: "isClockOn")
-        fetchData()
+        syncRoleAndFetch()
         setupNavigationBar()
     }
 
@@ -240,6 +240,35 @@ public class AdminMainViewController: BaseViewController, UICollectionViewDataSo
         }
     }
 
+    /// 앱 재진입 또는 화면 진입 시 최신 role을 서버에서 확인해 화면을 전환한다.
+    /// 1. reissue로 토큰을 갱신 (새 JWT에 최신 role 포함)
+    /// 2. /member/myrole로 현재 role 확인
+    /// 3. role이 ROLE_STUDENT로 바뀌었으면 MainViewController로 전환
+    private func syncRoleAndFetch() {
+        viewModel.gomsRefreshToken.tokenReissuance { [weak self] success in
+            guard let self else { return }
+            if success {
+                self.viewModel.getProfile { [weak self] authority in
+                    guard let self else { return }
+                    DispatchQueue.main.async {
+                        guard self.isVisible else { return }
+                        if authority == "ROLE_STUDENT" {
+                            let mainVC = MainViewController()
+                            self.navigationController?.setViewControllers([mainVC], animated: false)
+                            return
+                        }
+                        self.fetchData()
+                    }
+                }
+            } else {
+                DispatchQueue.main.async { [weak self] in
+                    guard let self, self.isVisible else { return }
+                    self.fetchData()
+                }
+            }
+        }
+    }
+
     private func fetchData() {
         let group = DispatchGroup()
         
diff --git a/Projects/Feature/Sources/Scene/Main/User/View/MainViewController.swift b/Projects/Feature/Sources/Scene/Main/User/View/MainViewController.swift
index dc89aa3b..38e80175 100644
--- a/Projects/Feature/Sources/Scene/Main/User/View/MainViewController.swift
+++ b/Projects/Feature/Sources/Scene/Main/User/View/MainViewController.swift
@@ -259,15 +259,7 @@ public final class MainViewController: BaseViewController, UICollectionViewDataS
         super.viewWillAppear(animated)
         isVisible = true
         isClockOn = UserDefaults.standard.bool(forKey: "isClockOn")
-
-        mainViewModel.getLateList { [weak self] in
-            self?.mainViewModel.getOutingList { [weak self] in
-                self?.setup()
-            }
-        }
-
-        fetchData()
-        
+        syncRoleAndFetch()
         self.navigationController?.navigationBar.prefersLargeTitles = false
         self.navigationItem.hidesBackButton = true
         self.navigationController?.setNavigationBarHidden(true, animated: false)
@@ -409,6 +401,32 @@ public final class MainViewController: BaseViewController, UICollectionViewDataS
         }
     }
 
+    /// 화면 진입 시 토큰을 갱신하고 최신 role을 확인해 필요하면 화면을 전환한다.
+    private func syncRoleAndFetch() {
+        mainViewModel.gomsRefreshToken.tokenReissuance { [weak self] success in
+            guard let self else { return }
+            if success {
+                self.mainViewModel.getProfile { [weak self] authority in
+                    guard let self else { return }
+                    DispatchQueue.main.async {
+                        guard self.isVisible else { return }
+                        if authority == "ROLE_STUDENT_COUNCIL" {
+                            let adminVC = AdminMainViewController()
+                            self.navigationController?.setViewControllers([adminVC], animated: false)
+                            return
+                        }
+                        self.fetchData()
+                    }
+                }
+            } else {
+                DispatchQueue.main.async { [weak self] in
+                    guard let self, self.isVisible else { return }
+                    self.fetchData()
+                }
+            }
+        }
+    }
+
     private func fetchData() {
         let group = DispatchGroup()