diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index bc19e0e7..4989388e 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -14,6 +14,7 @@
         "@sentry/react": "^8.24.0",
         "@sentry/webpack-plugin": "^2.22.0",
         "firebase": "^10.12.5",
+        "heic2any": "^0.0.4",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
         "react-ga4": "^2.1.0",
@@ -13585,6 +13586,11 @@
       "integrity": "sha512-IScLbePpkvO846sIwOtOTDjutRMWdXdJmXdMvk6gCBHxFO8d+QKOQedyZSxFTTFYRSmlgSTDtXqqq4pcenBXLQ==",
       "dev": true
     },
+    "node_modules/heic2any": {
+      "version": "0.0.4",
+      "resolved": "https://registry.npmjs.org/heic2any/-/heic2any-0.0.4.tgz",
+      "integrity": "sha512-3lLnZiDELfabVH87htnRolZ2iehX9zwpRyGNz22GKXIu0fznlblf0/ftppXKNqS26dqFSeqfIBhAmAj/uSp0cA=="
+    },
     "node_modules/hoist-non-react-statics": {
       "version": "3.3.2",
       "resolved": "https://registry.npmjs.org/hoist-non-react-statics/-/hoist-non-react-statics-3.3.2.tgz",
diff --git a/frontend/package.json b/frontend/package.json
index 6f400ecc..f4e13a84 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -94,6 +94,7 @@
     "@sentry/react": "^8.24.0",
     "@sentry/webpack-plugin": "^2.22.0",
     "firebase": "^10.12.5",
+    "heic2any": "^0.0.4",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "react-ga4": "^2.1.0",
diff --git a/frontend/src/common/assets/loading.gif b/frontend/src/common/assets/loading.gif
new file mode 100644
index 00000000..c5126ed9
Binary files /dev/null and b/frontend/src/common/assets/loading.gif differ
diff --git a/frontend/src/components/Fallback/HappyFallback/HappyFallback.style.ts b/frontend/src/components/Fallback/HappyFallback/HappyFallback.style.ts
index c7ee1ab1..9ff1a123 100644
--- a/frontend/src/components/Fallback/HappyFallback/HappyFallback.style.ts
+++ b/frontend/src/components/Fallback/HappyFallback/HappyFallback.style.ts
@@ -22,8 +22,6 @@ export const container = ({
 `;
 
 export const image = css`
-  width: 100%;
   max-width: 40rem;
-  height: 100%;
   max-height: 40rem;
 `;
diff --git a/frontend/src/pages/Login/OAuthLoginPage/OAuthLoginPage.tsx b/frontend/src/pages/Login/OAuthLoginPage/OAuthLoginPage.tsx
index 2f858b06..5fc6a51e 100644
--- a/frontend/src/pages/Login/OAuthLoginPage/OAuthLoginPage.tsx
+++ b/frontend/src/pages/Login/OAuthLoginPage/OAuthLoginPage.tsx
@@ -14,7 +14,7 @@ export default function OAuthLoginPage() {
   const params = useParams<'provider'>();
   const provider = params.provider as Provider | undefined;
   const { mutate: kakaoMigration } = useMigrationOAuth(
-    () => navigate(`${GET_ROUTES.default.resultMigration}/sucess`),
+    () => navigate(`${GET_ROUTES.default.resultMigration}/success`),
     () => navigate(`${GET_ROUTES.default.resultMigration}/fail`),
   );
 
diff --git a/frontend/src/pages/Moim/MainPage/MainPage.tsx b/frontend/src/pages/Moim/MainPage/MainPage.tsx
index b8665018..52be0849 100644
--- a/frontend/src/pages/Moim/MainPage/MainPage.tsx
+++ b/frontend/src/pages/Moim/MainPage/MainPage.tsx
@@ -38,6 +38,7 @@ import { useTheme } from '@emotion/react';
 export default function MainPage() {
   const navigate = useNavigate();
   const { mutate } = useServeToken();
+
   const theme = useTheme();
   const [currentTab, setCurrentTab] = useState<MainPageTab>('모임목록');
   const [isDarakbangMenuOpened, setIsDarakbangMenuOpened] = useState(false);
@@ -53,6 +54,7 @@ export default function MainPage() {
     if (window.Notification && window.Notification.permission === 'default') {
       setIsModalOpen(true);
     }
+    requestPermission(mutate);
   }, []);
 
   const handleModalClose = () => {
diff --git a/frontend/src/pages/Mypage/MyPage.tsx b/frontend/src/pages/Mypage/MyPage.tsx
index 2c13a86d..b67ffaa7 100644
--- a/frontend/src/pages/Mypage/MyPage.tsx
+++ b/frontend/src/pages/Mypage/MyPage.tsx
@@ -26,6 +26,7 @@ export default function MyPage() {
     isEditing,
     isShownRest,
     isValidMyInfo,
+    isImageLoading,
     setNickname,
     setDescription,
     handleEditClick,
@@ -74,9 +75,14 @@ export default function MyPage() {
                 {isValidMyInfo && (
                   <button
                     css={S.AccountButton({ theme })}
-                    onClick={() => onUpload()}
+                    onClick={() => {
+                      if (!isImageLoading) {
+                        onUpload();
+                      }
+                    }}
+                    disabled={isImageLoading}
                   >
-                    저장
+                    {isImageLoading ? '저장 중...' : '저장'}
                   </button>
                 )}
                 <button css={S.AccountButton({ theme })} onClick={handleCancel}>
diff --git a/frontend/src/pages/Mypage/hook/useMyPage.ts b/frontend/src/pages/Mypage/hook/useMyPage.ts
index e0eadf7a..c0cfb960 100644
--- a/frontend/src/pages/Mypage/hook/useMyPage.ts
+++ b/frontend/src/pages/Mypage/hook/useMyPage.ts
@@ -3,6 +3,8 @@ import useMyInfo from '@_hooks/queries/useMyInfo';
 import { useState, useRef, useEffect, ChangeEvent } from 'react';
 import { validateNickName } from '../validate';
 import POLICES from '@_constants/poclies';
+import heic2any from 'heic2any';
+import loadingSpinner from '@_common/assets/loading.gif';
 
 export default function useMyPage() {
   const { myInfo } = useMyInfo();
@@ -15,6 +17,7 @@ export default function useMyPage() {
   const [isEditing, setIsEditing] = useState(false);
   const [isReset, setIsReset] = useState('false');
   const [isShownRest, setIsShownRest] = useState(false);
+  const [isImageLoading, setIsImageLoading] = useState(false); // 로딩 상태 추가
 
   useEffect(() => {
     if (myInfo) {
@@ -30,8 +33,58 @@ export default function useMyPage() {
     setIsEditing((prev) => !prev);
     setSelectedFile('');
   };
+  const HEIC_SIGNATURE = '66747970'; // HEIC 매직 넘버
 
-  const onChange = (e: ChangeEvent<HTMLInputElement>) => {
+  const isHeifFile = (file: File): Promise<boolean> => {
+    return new Promise((resolve, reject) => {
+      const reader = new FileReader();
+
+      reader.onloadend = () => {
+        const arr = new Uint8Array(reader.result as ArrayBuffer).subarray(0, 8);
+        let header = '';
+        for (let i = 0; i < arr.length; i++) {
+          header += arr[i].toString(16);
+        }
+
+        // HEIC 파일인지 확인
+        const isHeif = header.includes(HEIC_SIGNATURE);
+        resolve(isHeif);
+      };
+
+      reader.onerror = () => {
+        reject(new Error('파일 읽기 중 오류 발생'));
+      };
+
+      reader.readAsArrayBuffer(file);
+    });
+  };
+
+  /**
+   * HEIC 파일을 JPEG로 변환
+   * @param file
+   * @returns
+   */
+  const handleFileConversion = async (file: File) => {
+    try {
+      const result = await heic2any({ blob: file, toType: 'image/jpeg' });
+
+      const jpegBlob = Array.isArray(result)
+        ? new Blob(result, { type: 'image/jpeg' })
+        : result;
+
+      const jpegFile = new File(
+        [jpegBlob],
+        file.name.replace(/\.[^/.]+$/, '.jpeg'),
+        { type: 'image/jpeg' },
+      );
+
+      return jpegFile;
+    } catch (error) {
+      return null;
+    }
+  };
+
+  const onChange = async (e: ChangeEvent<HTMLInputElement>) => {
     if (e.target.files && e.target.files[0]) {
       const maxSize = POLICES.maxProfileImageSize;
       const fileSize = e.target.files[0].size;
@@ -40,21 +93,48 @@ export default function useMyPage() {
         e.target.value = '';
         return;
       }
-      setSelectedFile(e.target.files[0]); // 선택한 파일을 상태에 저장
+
+      let file = e.target.files[0];
+      setIsImageLoading(true); // 변환 시작 시 로딩 상태를 true로 설정
+      setProfile(loadingSpinner);
+
+      const isHeif = await isHeifFile(file);
+
+      if (isHeif) {
+        try {
+          const convertedFile = await handleFileConversion(file);
+          if (!convertedFile) throw new Error('파일 변환 실패');
+          setSelectedFile(convertedFile);
+          file = convertedFile;
+        } catch (error) {
+          alert('이미지 파일을 처리하는 중 오류가 발생했습니다.');
+          setIsImageLoading(false); // 오류 발생 시 로딩 상태를 false로 설정
+          return;
+        }
+      } else {
+        setSelectedFile(file);
+      }
+
       setIsShownRest(true);
       setIsReset('false');
+
+      const reader = new FileReader();
+      reader.onload = () => {
+        if (reader.readyState === 2 && typeof reader.result === 'string') {
+          setProfile(reader.result);
+          setIsImageLoading(false); // 이미지 로드 완료 시 로딩 상태를 false로 설정
+        }
+      };
+      reader.onerror = () => {
+        console.error('이미지 파일을 읽는 중 오류가 발생했습니다.');
+        alert('이미지 파일을 읽는 중 오류가 발생했습니다.');
+        setIsImageLoading(false);
+      };
+      reader.readAsDataURL(file);
     } else {
       setProfile(myInfo?.profile ?? '');
       return;
     }
-
-    const reader = new FileReader();
-    reader.onload = () => {
-      if (reader.readyState === 2 && typeof reader.result === 'string') {
-        setProfile(reader.result);
-      }
-    };
-    reader.readAsDataURL(e.target.files[0]);
   };
 
   const onUpload = async () => {
@@ -111,6 +191,7 @@ export default function useMyPage() {
     isReset,
     isShownRest,
     isValidMyInfo,
+    isImageLoading,
     setNickname,
     setDescription,
     setIsEditing,