diff --git a/package.json b/package.json
index 5b1bad47..44840dcc 100644
--- a/package.json
+++ b/package.json
@@ -19,6 +19,7 @@
     "axios": "^1.6.5",
     "eslint-plugin-react": "^7.33.2",
     "grapheme-splitter": "^1.0.4",
+    "heic2any": "^0.0.4",
     "lottie-react": "^2.4.0",
     "postcss": "^8.4.33",
     "postcss-styled-syntax": "^0.6.3",
diff --git a/src/LecueNote/components/SelectColor/index.tsx b/src/LecueNote/components/SelectColor/index.tsx
index eb2ccbc9..ee6cf943 100644
--- a/src/LecueNote/components/SelectColor/index.tsx
+++ b/src/LecueNote/components/SelectColor/index.tsx
@@ -18,8 +18,9 @@ function SelectColor({
   handleColorFn,
   handleIconFn,
   selectedFile,
+  handleIsLoading,
 }: SelectColorProps) {
-  const { textColor, background, category } = lecueNoteState;
+  const { textColor, background, category, contents } = lecueNoteState;
 
   return (
     <S.Wrapper>
@@ -43,11 +44,13 @@ function SelectColor({
         isIconClicked={isIconClicked}
         colorChart={category === '텍스트색' ? TEXT_COLOR_CHART : BG_COLOR_CHART}
         state={category === '텍스트색' ? textColor : background}
+        contents={contents}
         handleTransformImgFile={handleTransformImgFile}
         presignedUrlDispatch={presignedUrlDispatch}
         selectedFile={selectedFile}
         handleFn={handleColorFn}
         handleIconFn={handleIconFn}
+        handleIsLoading={handleIsLoading}
       />
     </S.Wrapper>
   );
diff --git a/src/LecueNote/components/ShowColorChart/index.tsx b/src/LecueNote/components/ShowColorChart/index.tsx
index 452bb58e..d0785aff 100644
--- a/src/LecueNote/components/ShowColorChart/index.tsx
+++ b/src/LecueNote/components/ShowColorChart/index.tsx
@@ -4,44 +4,63 @@ import { IcCameraSmall } from '../../../assets';
 import { BG_COLOR_CHART } from '../../constants/colorChart';
 import useGetPresignedUrl from '../../hooks/useGetPresignedUrl';
 import { ShowColorChartProps } from '../../type/lecueNoteType';
+import handleClickFiletoBinary from '../../util/handleClickFiletoBinary';
+import handleClickFiletoString from '../../util/handleClickFiletoString';
+import handleClickHeicToJpg from '../../util/handleClickHeicToJpg';
 import * as S from './ShowColorChart.style';
 
 function ShowColorChart({
   isIconClicked,
   colorChart,
   state,
+  contents,
   handleTransformImgFile,
   presignedUrlDispatch,
   selectedFile,
   handleFn,
   handleIconFn,
+  handleIsLoading,
 }: ShowColorChartProps) {
   const imgRef = useRef<HTMLInputElement | null>(null);
   useGetPresignedUrl({ presignedUrlDispatch });
 
+  const handleChangeContents = () => {
+    sessionStorage.setItem('noteContents', contents ? contents : '');
+  };
+
+  const handleReaderOnloadend = (reader: FileReader, file: File) => {
+    handleTransformImgFile(reader);
+    selectedFile(file);
+  };
+
   const handleImageUpload = () => {
     const fileInput = imgRef.current;
 
     if (fileInput && fileInput.files && fileInput.files.length > 0) {
       const file = fileInput.files[0];
 
-      // reader1: 파일을 base64로 읽어서 업로드
-      const reader1 = new FileReader();
-      reader1.readAsDataURL(file);
-      reader1.onloadend = () => {
-        if (reader1.result !== null) {
-          handleTransformImgFile(reader1.result as string);
-        }
-      };
+      if (file.name.split('.')[1].toUpperCase() === 'HEIC') {
+        handleClickHeicToJpg({
+          file: file,
+          handleTransformImgFile,
+          handleReaderOnloadend,
+          handleIsLoading,
+        });
+      } else {
+        const reader1 = new FileReader();
+        handleClickFiletoString({
+          file: file,
+          reader: reader1,
+          handleTransformImgFile,
+        });
 
-      // reader2: 파일을 ArrayBuffer로 읽어서 PUT 요청 수행
-      const reader2 = new FileReader();
-      reader2.readAsArrayBuffer(file);
-      // reader1의 비동기 작업이 완료된 후 수행(onloadend() 활용)
-      reader2.onloadend = () => {
-        handleTransformImgFile(reader2);
-        selectedFile(file);
-      };
+        const reader2 = new FileReader();
+        handleClickFiletoBinary({
+          file: file,
+          reader: reader2,
+          handleReaderOnloadend,
+        });
+      }
     }
   };
 
@@ -51,7 +70,7 @@ function ShowColorChart({
         <>
           <S.Input
             type="file"
-            accept="image/*"
+            accept="image/*, image/heic"
             onChange={handleImageUpload}
             ref={imgRef}
           />
@@ -59,6 +78,7 @@ function ShowColorChart({
           <S.IconWrapper
             onClick={() => {
               handleIconFn();
+              handleChangeContents();
               imgRef.current?.click();
             }}
             $isIconClicked={isIconClicked}
diff --git a/src/LecueNote/components/WriteNote/NoteLoading/NoteLoading.style.ts b/src/LecueNote/components/WriteNote/NoteLoading/NoteLoading.style.ts
new file mode 100644
index 00000000..30277927
--- /dev/null
+++ b/src/LecueNote/components/WriteNote/NoteLoading/NoteLoading.style.ts
@@ -0,0 +1,21 @@
+import styled from '@emotion/styled';
+
+export const LoadingWrapper = styled.div`
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  position: absolute;
+  top: 0;
+  left: 0;
+
+  width: 100%;
+  height: 100%;
+
+  border: 0.6rem;
+  background-color: ${({ theme }) => theme.colors.background};
+`;
+
+export const LottieWrapper = styled.div`
+  width: 10rem;
+  height: 10rem;
+`;
diff --git a/src/LecueNote/components/WriteNote/NoteLoading/index.tsx b/src/LecueNote/components/WriteNote/NoteLoading/index.tsx
new file mode 100644
index 00000000..e56ccde4
--- /dev/null
+++ b/src/LecueNote/components/WriteNote/NoteLoading/index.tsx
@@ -0,0 +1,24 @@
+import Lottie from 'lottie-react';
+import { useEffect } from 'react';
+
+import animationData from '../../../../../src/assets/lottie/spiner 120.json';
+import * as S from './NoteLoading.style';
+
+interface NoteLoadingProps {
+  handleResetPrevImg: () => void;
+}
+const NoteLoading = ({ handleResetPrevImg }: NoteLoadingProps) => {
+  useEffect(() => {
+    handleResetPrevImg();
+  }, []);
+
+  return (
+    <S.LoadingWrapper>
+      <S.LottieWrapper>
+        <Lottie animationData={animationData} />
+      </S.LottieWrapper>
+    </S.LoadingWrapper>
+  );
+};
+
+export default NoteLoading;
diff --git a/src/LecueNote/components/WriteNote/WriteNote.style.ts b/src/LecueNote/components/WriteNote/WriteNote.style.ts
index 8c6e0882..844138f2 100644
--- a/src/LecueNote/components/WriteNote/WriteNote.style.ts
+++ b/src/LecueNote/components/WriteNote/WriteNote.style.ts
@@ -14,6 +14,7 @@ export const LecueNote = styled.article<{
 }>`
   display: flex;
   flex-direction: column;
+  position: relative;
 
   width: 100%;
   height: calc(100dvh - 33.2rem);
diff --git a/src/LecueNote/components/WriteNote/index.tsx b/src/LecueNote/components/WriteNote/index.tsx
index 774285cf..d2c95141 100644
--- a/src/LecueNote/components/WriteNote/index.tsx
+++ b/src/LecueNote/components/WriteNote/index.tsx
@@ -2,14 +2,17 @@ import GraphemeSplitter from 'grapheme-splitter';
 import { useEffect, useState } from 'react';
 
 import { WriteNoteProps } from '../../type/lecueNoteType';
+import NoteLoading from './NoteLoading';
 import * as S from './WriteNote.style';
 
 function WriteNote({
+  isLoading,
   lecueNoteState,
   imgFile,
   isIconClicked,
   contents,
   handleChangeFn,
+  handleResetPrevImg,
 }: WriteNoteProps) {
   const nickname = localStorage.getItem('nickname');
   const { textColor, background } = lecueNoteState;
@@ -30,6 +33,8 @@ function WriteNote({
         $isIconClicked={isIconClicked}
         $imgFile={imgFile}
       >
+        {isLoading && <NoteLoading handleResetPrevImg={handleResetPrevImg} />}
+
         <S.Nickname $textColor={textColor}>{nickname}</S.Nickname>
         <S.Contents
           $textColor={textColor}
diff --git a/src/LecueNote/page/LeceuNotePage/index.tsx b/src/LecueNote/page/LeceuNotePage/index.tsx
index 7e21a0d1..77553920 100644
--- a/src/LecueNote/page/LeceuNotePage/index.tsx
+++ b/src/LecueNote/page/LeceuNotePage/index.tsx
@@ -23,15 +23,17 @@ function LecueNotePage() {
   const location = useLocation();
   const putMutation = usePutPresignedUrl();
   const postMutation = usePostLecueNote();
+  const noteContents = sessionStorage.getItem('noteContents');
   const { bookId } = location.state || {};
 
   const [modalOn, setModalOn] = useState(false);
   const [escapeModal, setEscapeModal] = useState(false);
+  const [isLoading, setIsLoading] = useState(false);
 
   const [lecueNoteState, dispatch] = useReducer(reducer, {
     presignedUrl: '',
     filename: BG_COLOR_CHART[0],
-    contents: '',
+    contents: noteContents !== null ? noteContents : '',
     category: CATEGORY[0],
     textColor: TEXT_COLOR_CHART[0],
     background: BG_COLOR_CHART[0],
@@ -41,6 +43,14 @@ function LecueNotePage() {
     imgToBinary: new FileReader(),
   });
 
+  const handleIsLoading = (booleanStatus: boolean) => {
+    setIsLoading(booleanStatus);
+  };
+
+  const handleResetPrevImg = () => {
+    dispatch({ type: 'RESET_PREV_IMG' });
+  };
+
   const handleChangeContents = (e: React.ChangeEvent<HTMLTextAreaElement>) => {
     dispatch({ type: 'SET_CONTENTS', contents: e.target.value });
     if (e.target.value.length > MAX_LENGTH) {
@@ -89,6 +99,8 @@ function LecueNotePage() {
       isIconClicked: lecueNoteState.isIconClicked,
       bookId: bookId,
     });
+
+    sessionStorage.setItem('noteContents', '');
   };
 
   return putMutation.isLoading || postMutation.isLoading ? (
@@ -105,7 +117,10 @@ function LecueNotePage() {
 
       {escapeModal && (
         <CommonModal
-          handleFn={() => navigate(-1)}
+          handleFn={() => {
+            navigate(-1);
+            sessionStorage.setItem('noteContents', '');
+          }}
           category="note_escape"
           setModalOn={setEscapeModal}
         />
@@ -117,11 +132,13 @@ function LecueNotePage() {
 
       <S.CreateNote>
         <WriteNote
+          isLoading={isLoading}
           imgFile={lecueNoteState.imgToStr}
           isIconClicked={lecueNoteState.isIconClicked}
           lecueNoteState={lecueNoteState}
           contents={lecueNoteState.contents}
           handleChangeFn={handleChangeContents}
+          handleResetPrevImg={handleResetPrevImg}
         />
         <SelectColor
           isIconClicked={lecueNoteState.isIconClicked}
@@ -139,6 +156,7 @@ function LecueNotePage() {
           }
           handleColorFn={handleClickedColorBtn}
           handleIconFn={() => dispatch({ type: 'CLICKED_IMG_ICON' })}
+          handleIsLoading={handleIsLoading}
         />
       </S.CreateNote>
 
diff --git a/src/LecueNote/reducer/lecueNoteReducer.ts b/src/LecueNote/reducer/lecueNoteReducer.ts
index b7616fed..b4becec3 100644
--- a/src/LecueNote/reducer/lecueNoteReducer.ts
+++ b/src/LecueNote/reducer/lecueNoteReducer.ts
@@ -46,6 +46,9 @@ export const reducer = (state: State, action: Action): State => {
     case 'IMG_TO_BINARY':
       return { ...state, imgToBinary: action.imgFile };
 
+    case 'RESET_PREV_IMG':
+      return { ...state, imgToStr: '' };
+
     default:
       throw new Error('Unhandled action');
   }
diff --git a/src/LecueNote/type/lecueNoteType.ts b/src/LecueNote/type/lecueNoteType.ts
index 787f67d1..0e9bb78d 100644
--- a/src/LecueNote/type/lecueNoteType.ts
+++ b/src/LecueNote/type/lecueNoteType.ts
@@ -4,6 +4,7 @@ export interface SelectColorProps {
     textColor: string;
     background: string;
     category?: string;
+    contents?: string;
   };
   selectedFile: (file: File) => void;
   presignedUrlDispatch: React.Dispatch<{
@@ -17,12 +18,14 @@ export interface SelectColorProps {
   handleColorFn: (e: React.MouseEvent<HTMLButtonElement, MouseEvent>) => void;
   handleIconFn: () => void;
   handleTransformImgFile: (file: string | FileReader) => void;
+  handleIsLoading: (status: boolean) => void;
 }
 
 export interface ShowColorChartProps {
   isIconClicked: boolean;
   colorChart: string[];
   state: string;
+  contents?: string;
   handleTransformImgFile: (file: string | FileReader) => void;
   selectedFile: (file: File) => void;
   handleFn: (e: React.MouseEvent<HTMLButtonElement, MouseEvent>) => void;
@@ -32,9 +35,11 @@ export interface ShowColorChartProps {
     presignedUrl: string;
     filename: string;
   }>;
+  handleIsLoading: (status: boolean) => void;
 }
 
 export interface WriteNoteProps {
+  isLoading: boolean;
   imgFile: string;
   isIconClicked: boolean;
   lecueNoteState: {
@@ -44,6 +49,7 @@ export interface WriteNoteProps {
   };
   contents: string;
   handleChangeFn: (e: React.ChangeEvent<HTMLTextAreaElement>) => void;
+  handleResetPrevImg: () => void;
 }
 
 export interface FooterProps {
diff --git a/src/LecueNote/type/reducerType.ts b/src/LecueNote/type/reducerType.ts
index bd8a244d..e8e257f9 100644
--- a/src/LecueNote/type/reducerType.ts
+++ b/src/LecueNote/type/reducerType.ts
@@ -21,4 +21,5 @@ export type Action =
   | { type: 'CLICKED_IMG_ICON' }
   | { type: 'NOT_CLICKED_IMG_ICON' }
   | { type: 'IMG_TO_STR'; imgFile: string }
-  | { type: 'IMG_TO_BINARY'; imgFile: FileReader };
+  | { type: 'IMG_TO_BINARY'; imgFile: FileReader }
+  | { type: 'RESET_PREV_IMG'; };
diff --git a/src/LecueNote/util/handleClickFiletoBinary.ts b/src/LecueNote/util/handleClickFiletoBinary.ts
new file mode 100644
index 00000000..0db442be
--- /dev/null
+++ b/src/LecueNote/util/handleClickFiletoBinary.ts
@@ -0,0 +1,19 @@
+interface handleClickFiletoBinaryProps {
+  file: File;
+  reader: FileReader;
+  handleReaderOnloadend: (reader: FileReader, file: File) => void;
+}
+
+const handleClickFiletoBinary = ({
+  file,
+  reader,
+  handleReaderOnloadend,
+}: handleClickFiletoBinaryProps) => {
+  reader.readAsArrayBuffer(file);
+  // reader1의 비동기 작업이 완료된 후 수행(onloadend() 활용)
+  reader.onloadend = () => {
+    handleReaderOnloadend(reader, file);
+  };
+};
+
+export default handleClickFiletoBinary;
diff --git a/src/LecueNote/util/handleClickFiletoString.ts b/src/LecueNote/util/handleClickFiletoString.ts
new file mode 100644
index 00000000..68d02ca5
--- /dev/null
+++ b/src/LecueNote/util/handleClickFiletoString.ts
@@ -0,0 +1,20 @@
+interface handleClickFiletoStringProps {
+  file: File;
+  reader: FileReader;
+  handleTransformImgFile: (file: string | FileReader) => void;
+}
+
+const handleClickFiletoString = ({
+  file,
+  reader,
+  handleTransformImgFile,
+}: handleClickFiletoStringProps) => {
+  reader.readAsDataURL(file);
+  reader.onloadend = () => {
+    if (reader.result !== null) {
+      handleTransformImgFile(reader.result as string);
+    }
+  };
+};
+
+export default handleClickFiletoString;
diff --git a/src/LecueNote/util/handleClickHeicToJpg.ts b/src/LecueNote/util/handleClickHeicToJpg.ts
new file mode 100644
index 00000000..27799294
--- /dev/null
+++ b/src/LecueNote/util/handleClickHeicToJpg.ts
@@ -0,0 +1,49 @@
+import heic2any from 'heic2any';
+
+import handleClickFiletoBinary from './handleClickFiletoBinary';
+import handleClickFiletoString from './handleClickFiletoString';
+
+interface handleClickHeicToJpgProps {
+  file: File;
+  handleTransformImgFile: (file: string | FileReader) => void;
+  handleReaderOnloadend: (reader: FileReader, file: File) => void;
+  handleIsLoading: (status: boolean) => void;
+}
+
+const handleClickHeicToJpg = ({
+  file,
+  handleTransformImgFile,
+  handleReaderOnloadend,
+  handleIsLoading,
+}: handleClickHeicToJpgProps) => {
+  handleIsLoading(true);
+
+  heic2any({ blob: file, toType: 'image/jpeg' })
+    .then(function (resultBlob) {
+      // 변환된 Blob을 사용하여 새로운 File 생성
+      const jpg = new File(
+        Array.isArray(resultBlob) ? resultBlob : [resultBlob],
+        file.name.split('.')[0] + '.jpg',
+        { type: 'image/jpeg', lastModified: new Date().getTime() },
+      );
+
+      // reader1: 파일을 base64로 읽어서 업로드
+      const reader1 = new FileReader();
+      handleClickFiletoString({
+        file: jpg,
+        reader: reader1,
+        handleTransformImgFile,
+      });
+
+      // reader2: 파일을 ArrayBuffer로 읽어서 PUT 요청 수행
+      const reader2 = new FileReader();
+      handleClickFiletoBinary({
+        file: jpg,
+        reader: reader2,
+        handleReaderOnloadend,
+      });
+    })
+    .finally(() => handleIsLoading(false));
+};
+
+export default handleClickHeicToJpg;
diff --git a/yarn.lock b/yarn.lock
index 7ca484db..327d7b5d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2228,6 +2228,11 @@ hasown@^2.0.0:
   dependencies:
     function-bind "^1.1.2"
 
+heic2any@^0.0.4:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/heic2any/-/heic2any-0.0.4.tgz#eddb8e6fec53c8583a6e18b65069bb5e8d19028a"
+  integrity sha512-3lLnZiDELfabVH87htnRolZ2iehX9zwpRyGNz22GKXIu0fznlblf0/ftppXKNqS26dqFSeqfIBhAmAj/uSp0cA==
+
 hoist-non-react-statics@^3.3.1, hoist-non-react-statics@^3.3.2:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/hoist-non-react-statics/-/hoist-non-react-statics-3.3.2.tgz#ece0acaf71d62c2969c2ec59feff42a4b1a85b45"