diff --git a/src/cert/TokenStorage.ts b/src/cert/TokenStorage.ts
index 135d95c..38a0e2e 100644
--- a/src/cert/TokenStorage.ts
+++ b/src/cert/TokenStorage.ts
@@ -74,7 +74,7 @@ export function getToken() {
   return token;
 }
 
-export function getAuth(): { id: string; url: string } {
+export function getDecodedToken(): { id: string; url: string } {
   const token = localStorage.getItem(TOKEN);
   if (!token) {
     return { id: null, url: null };
diff --git a/src/components/Auth/AuthCallback.tsx b/src/components/Auth/AuthCallback.tsx
index 4bb02a8..d2431aa 100644
--- a/src/components/Auth/AuthCallback.tsx
+++ b/src/components/Auth/AuthCallback.tsx
@@ -2,7 +2,7 @@ import React, { useEffect } from 'react';
 import { useLocation } from 'react-router-dom';
 import { saveToken } from '@cert/TokenStorage';
 import { useNavigate } from 'react-router-dom';
-import { getAuth } from '@cert/TokenStorage';
+import { getDecodedToken } from '@cert/TokenStorage';
 import GlobalLoginState from '@recoil/GlobalLoginState';
 import { useSetRecoilState } from 'recoil';
 
@@ -17,10 +17,10 @@ const AuthCallback = () => {
     saveToken(token);
     setLoginState(() => {
       return {
-        id: getAuth().id,
+        id: getDecodedToken().id,
         isLogin: true,
         isAdmin: false,
-        profileUrl: getAuth().url,
+        profileUrl: getDecodedToken().url,
       };
     });
     navigate('/');
diff --git a/src/components/Review/SelectModal.tsx b/src/components/Review/SelectModal.tsx
index 2d5c0df..d806442 100644
--- a/src/components/Review/SelectModal.tsx
+++ b/src/components/Review/SelectModal.tsx
@@ -12,7 +12,7 @@ import useSWR from 'swr';
 import getAddress from '@globalObj/function/getAddress';
 import fetcher from '@globalObj/function/fetcher';
 import EmptyEvent from '@globalObj/object/EmptyEvent';
-import { getAuth } from '@cert/AuthStorage';
+import { getDecodedToken } from '@cert/TokenStorage';
 
 function SelectModal(prop: { mode: string }) {
   const { data: eventList, mutate: mutateAllEvent } = useSWR<ReviewSelectedEventType[]>(
@@ -66,7 +66,7 @@ function SelectModal(prop: { mode: string }) {
       setSelectedTeam({ [event]: memArr });
       setEventListModalShow(false);
     } else {
-      setSelectedTeam({ [event]: [{ intraId: getAuth().id, profile: getAuth().url, teamId: -1 }] });
+      setSelectedTeam({ [event]: [{ intraId: getDecodedToken().id, profile: getDecodedToken().url, teamId: -1 }] });
       setEventListModalShow(false);
     }
   };
diff --git a/src/components/Rotation/Calendar.tsx b/src/components/Rotation/Calendar.tsx
index ce33353..6075ed1 100644
--- a/src/components/Rotation/Calendar.tsx
+++ b/src/components/Rotation/Calendar.tsx
@@ -10,7 +10,7 @@ import getAddress from '@globalObj/function/getAddress';
 import { getToken } from '@cert/TokenStorage';
 import errorAlert from '@globalObj/function/errorAlert';
 import '@css/Rotation/Calendar.scss';
-import { getAuth } from '@cert/AuthStorage';
+import { getDecodedToken } from '@cert/TokenStorage';
 import { DAY_OF_SUNDAY } from './rotation_utils';
 import apiClient from '@service/apiClient';
 
@@ -21,7 +21,7 @@ const COLOR = {
 
 export default class Calendar extends React.Component {
   state = {
-    auth: getAuth(),
+    auth: getDecodedToken(),
     weekendsVisible: true,
     currentEvents: [],
   };
diff --git a/src/components/Rotation/Rotation.tsx b/src/components/Rotation/Rotation.tsx
index f25576c..e425bef 100644
--- a/src/components/Rotation/Rotation.tsx
+++ b/src/components/Rotation/Rotation.tsx
@@ -1,6 +1,6 @@
 import React, { useEffect, useState, MouseEvent } from 'react';
 import { useNavigate } from 'react-router-dom';
-import { getAuth } from '@cert/AuthStorage';
+import { getDecodedToken } from '@cert/TokenStorage';
 import Calendar, { CalendarTileProperties } from 'react-calendar';
 import getAddress from '@globalObj/function/getAddress';
 import axios from 'axios';
@@ -325,7 +325,7 @@ export const Rotate = () => {
   const navigate = useNavigate();
   const currentDate = new Date();
   const initialRecord = createInitialObject(currentDate);
-  const intraId = getAuth()?.id ?? null;
+  const intraId = getDecodedToken()?.id ?? null;
   const isRotationApplicationPeriod = calculateIsRotationApplicationPeriod(currentDate);
   const [record, setRecord] = useState(() => ({ ...initialRecord }));
   const [isSubmit, setIsSumbit] = useState(false);
diff --git a/src/components/Rotation/RotationResult.tsx b/src/components/Rotation/RotationResult.tsx
index 5c03fa8..e1dc0fd 100644
--- a/src/components/Rotation/RotationResult.tsx
+++ b/src/components/Rotation/RotationResult.tsx
@@ -2,7 +2,7 @@ import React, { useState, useEffect } from 'react';
 import LoadingSpinner from './Loading';
 import { RotateUserResult } from './RotateUserResult';
 import { getRotationMonthArr } from './event_utils';
-import { getAuth } from '@cert/AuthStorage';
+import { getDecodedToken } from '@cert/TokenStorage';
 import '@css/Rotation/Rotation.scss';
 
 export const RotateResult = () => {
@@ -13,7 +13,7 @@ export const RotateResult = () => {
   date < new Date(year, nextmonth, -1) ? (month = nextmonth - 1) : nextmonth;
   const [Loading, setLoading] = useState(true);
   const [arr, setArr] = useState([]);
-  const intraId = getAuth() ? getAuth().id : null;
+  const intraId = getDecodedToken() ? getDecodedToken().id : null;
 
   const mainApi = async () => {
     setLoading(true); // api 호출 전에 true로 변경하여 로딩화면 띄우기
diff --git a/src/components/Rotation/event_utils.tsx b/src/components/Rotation/event_utils.tsx
index 23466fc..3ff5467 100644
--- a/src/components/Rotation/event_utils.tsx
+++ b/src/components/Rotation/event_utils.tsx
@@ -1,5 +1,5 @@
 import getAddress from '@globalObj/function/getAddress';
-import { getAuth } from '@cert/AuthStorage';
+import { getDecodedToken } from '@cert/TokenStorage';
 import apiClient from '@service/apiClient';
 import errorAlert from '@globalObj/function/errorAlert';
 
@@ -11,7 +11,7 @@ export function createEventId() {
 }
 
 function rotatedArrAllInfo(data) {
-  const intraId = getAuth() ? getAuth().id : null;
+  const intraId = getDecodedToken() ? getDecodedToken().id : null;
   return data
     .filter((el) => !!el.year && !!el.month && !!el.day)
     .map((el) => ({
diff --git a/src/globalObj/object/EmptyEvent.ts b/src/globalObj/object/EmptyEvent.ts
index 2059be4..dc91ed5 100644
--- a/src/globalObj/object/EmptyEvent.ts
+++ b/src/globalObj/object/EmptyEvent.ts
@@ -1,4 +1,4 @@
-import { getAuth } from '@cert/AuthStorage';
+import { getDecodedToken } from '@cert/TokenStorage';
 import { ReviewSelectedEventType } from './types';
 
 function EmptyEvent(): ReviewSelectedEventType {
@@ -9,7 +9,7 @@ function EmptyEvent(): ReviewSelectedEventType {
     createdId: 1,
     intraId: 'tkim',
     isMatching: 1,
-    teamList: { 사서: [{ intraId: getAuth().id, profile: getAuth().url, teamId: -1 }] },
+    teamList: { 사서: [{ intraId: getDecodedToken().id, profile: getDecodedToken().url, teamId: -1 }] },
   };
 }
 
diff --git a/src/recoil/GlobalLoginState.ts b/src/recoil/GlobalLoginState.ts
index 43a8838..b61401e 100644
--- a/src/recoil/GlobalLoginState.ts
+++ b/src/recoil/GlobalLoginState.ts
@@ -1,13 +1,13 @@
 import { atom } from 'recoil';
 import { userData } from '@globalObj/object/types';
-import { getAuth } from '@cert/AuthStorage';
+import { getDecodedToken } from '@cert/TokenStorage';
 
-const value = getAuth()
+const value = getDecodedToken()
   ? {
       isLogin: true,
-      isAdmin: getAuth()['id'] === 'tkim',
-      id: getAuth()['id'],
-      profileUrl: getAuth()['url'],
+      isAdmin: getDecodedToken()['id'] === 'tkim',
+      id: getDecodedToken()['id'],
+      profileUrl: getDecodedToken()['url'],
     }
   : {
       isLogin: false,