diff --git a/src/app/study/create/page.jsx b/src/app/study/create/page.jsx
index c1cf349..e753f42 100644
--- a/src/app/study/create/page.jsx
+++ b/src/app/study/create/page.jsx
@@ -68,7 +68,7 @@ export default function CreateStudy() {
 
         try {
             const imageFile = formData.image;
-            const s3key = `/study/`;
+            const s3key = `study`;
 
             const s3Form = new FormData();
             s3Form.append('file', imageFile);
diff --git a/src/components/study/dashboard/admin/detail/ReviewApplication.jsx b/src/components/study/dashboard/admin/detail/ReviewApplication.jsx
index ef16937..53f6b50 100644
--- a/src/components/study/dashboard/admin/detail/ReviewApplication.jsx
+++ b/src/components/study/dashboard/admin/detail/ReviewApplication.jsx
@@ -1,6 +1,6 @@
 'use client';
 
-import { useState, useEffect } from 'react';
+import { useState, useEffect, useCallback } from 'react';
 import { useRouter } from 'next/navigation';
 import { Spinner } from "@nextui-org/react";
 
@@ -148,7 +148,7 @@ export default function ReviewApplication({ studyId }) {
     };
 
     // 이벤트 핸들러
-    const handleToggleEvent = React.useCallback((e) => {
+    const handleToggleEvent = useCallback((e) => {
         const { applicantId } = e.detail;
         toggleSelection(applicantId);
     }, []);
@@ -238,7 +238,15 @@ export default function ReviewApplication({ studyId }) {
                 console.log(`합격자: ${approved.length}명`);
                 console.log(`불합격자: ${rejected.length}명`);
                 alert(`${approved.length}명 합격, ${rejected.length}명 불합격 처리되었습니다.`);
+
+                // 로컬스토리지 데이터 삭제
                 removeFromStorage(`sAL${studyId}Hambugi`);
+
+                // 버튼 비활성화 및 상태 업데이트
+                setHasProcessedApplicants(true);
+                setIsApprovalButtonDisabled(true);
+
+                // 데이터 업데이트를 위한 페이지 리로딩
                 router.reload();
                 return;
             }