diff --git a/frontend/src/app/admin/milestone/list/[slug]/page.tsx b/frontend/src/app/admin/milestone/list/[slug]/page.tsx
index 65d3073b..92ea9b8e 100644
--- a/frontend/src/app/admin/milestone/list/[slug]/page.tsx
+++ b/frontend/src/app/admin/milestone/list/[slug]/page.tsx
@@ -97,6 +97,12 @@ const Page = async ({ params: { slug } }: MilestoneHistoryDetailPageProps) => {
               <span className="w-[8em]">승인 상태</span>
               <span className="flex-grow">{convertMilestoneHistoryStatus(history.status)}</span>
             </p>
+            {history.rejectReason && (
+              <p className="flex">
+                <span className="w-[8em]">반려 이유</span>
+                <span className="flex-grow">{history.rejectReason}</span>
+              </p>
+            )}
             <MilestoneHistoryStatusChangeButton historyId={history.id} status={history.status} />
           </div>
         </div>
diff --git a/frontend/src/app/admin/milestone/list/page.tsx b/frontend/src/app/admin/milestone/list/page.tsx
index af521a30..8abc9ffb 100644
--- a/frontend/src/app/admin/milestone/list/page.tsx
+++ b/frontend/src/app/admin/milestone/list/page.tsx
@@ -10,6 +10,8 @@ import MilestoneHistoryTable from './components/MilestoneHistoryTable';
 import MilestoneHistoryExcelFileDownloadButton from './components/MilestoneHistoryTable/MilestoneHistoryExcelFileDownloadButton.tsx';
 import { AuthSliceState } from '@/store/auth.slice';
 import { getAuthFromCookie } from '@/lib/utils/auth';
+import { BusinessError } from '@/types/error';
+import { redirect } from 'next/navigation';
 
 const Page = async ({ searchParams }: { searchParams?: { [key: string]: string | undefined } }) => {
   const headersList = headers();
@@ -21,7 +23,12 @@ const Page = async ({ searchParams }: { searchParams?: { [key: string]: string |
   const field = searchParams?.field ? parseInt(searchParams.field, 10) : 0;
   const keyword = searchParams?.keyword ? searchParams.keyword : '';
 
-  const milestoneHistories = await getMilestoneHistories(auth.token, field, keyword, page - 1);
+  let milestoneHistories;
+  try {
+    milestoneHistories = await getMilestoneHistories(auth.token, field, keyword, page - 1);
+  } catch (err) {
+    // TODO: server api error handling...
+  }
 
   return (
     <div>
diff --git a/frontend/src/lib/api/server.api.ts b/frontend/src/lib/api/server.api.ts
index 81023286..cd95202b 100644
--- a/frontend/src/lib/api/server.api.ts
+++ b/frontend/src/lib/api/server.api.ts
@@ -13,6 +13,7 @@ import { MilestoneHistorySortCriteria, SortDirection } from '@/types/milestone';
 
 import { mockHackathonPrize } from '@/mocks/hackathon';
 import { removeEmptyField } from '../utils/utils';
+import { BusinessError } from '@/types/error';
 
 export async function getMilestoneHistoriesOfStudent(
   token: string,
@@ -60,7 +61,10 @@ export async function getMilestoneHistories(
       }),
     })
     .then((res) => res.data)
-    .catch((err) => Promise.reject(err));
+    .catch((err) => {
+      location.replace('/sign-out');
+      return Promise.reject(err);
+    });
 }
 
 export async function getMilestoneHistory(historyId: number, token: string) {
diff --git a/frontend/src/types/error.ts b/frontend/src/types/error.ts
index 53e666e2..20798dae 100644
--- a/frontend/src/types/error.ts
+++ b/frontend/src/types/error.ts
@@ -20,7 +20,7 @@ export class BusinessError extends Error {
     super();
     this.originalError = error;
     this.name = 'BusinessError';
-    this.message = message ? message : 'MemberRoleNotMatchedError';
+    this.message = message ? message : 'BusinessError';
   }
 }
 
@@ -28,7 +28,7 @@ export class AuthError extends BusinessError {
   constructor(error?: AxiosError, message?: string) {
     super(error, message);
     this.name = 'AuthError';
-    this.message = message ? message : 'MemberRoleNotMatchedError';
+    this.message = message ? message : 'AuthError';
   }
 }
 
@@ -36,7 +36,7 @@ export class NotFoundError extends AuthError {
   constructor(error?: AxiosError, message?: string) {
     super(error, message);
     this.name = 'NotFoundError';
-    this.message = message ? message : 'MemberRoleNotMatchedError';
+    this.message = message ? message : 'NotFoundError';
   }
 }
 
@@ -44,7 +44,7 @@ export class AccessDeniedError extends AuthError {
   constructor(error?: AxiosError, message?: string) {
     super(error, message);
     this.name = 'AccessDeniedError';
-    this.message = message ? message : 'MemberRoleNotMatchedError';
+    this.message = message ? message : 'AccessDeniedError';
   }
 }
 
@@ -52,7 +52,7 @@ export class UnauthorizedError extends AuthError {
   constructor(error?: AxiosError, message?: string) {
     super(error, message);
     this.name = 'UnauthorizedError';
-    this.message = message ? message : 'MemberRoleNotMatchedError';
+    this.message = message ? message : 'UnauthorizedError';
   }
 }