diff --git a/src/pages/MessagePage/MessagePage.jsx b/src/pages/MessagePage/MessagePage.jsx
index 6d20bf7..3c9e0cd 100644
--- a/src/pages/MessagePage/MessagePage.jsx
+++ b/src/pages/MessagePage/MessagePage.jsx
@@ -13,6 +13,8 @@ import { FONT_OPTIONS, FONT_DROPDOWN_ITEMS } from '@/constants/fontMap';
 import { useEffect } from 'react';
 import Button from '@/components/Button/Button';
 import EditorWrapper from '@/pages/MessagePage/components/EditorWrapper';
+import logoIcon from '@/assets/icons/icon_logo_white.svg';
+import backIcon from '@/assets/icons/icon_back.svg';
 
 // 상대와의 관계 옵션
 const RELATIONSHIP_OPTIONS = ['친구', '지인', '동료', '가족'];
@@ -87,6 +89,11 @@ function MessagePage() {
     navigate(`/post/${recipientId}`); // 실제 라우트에 맞게 수정
   };
 
+  const handleGoBackClick = (e) => {
+    e.preventDefault();
+    navigate(-1);
+  };
+
   return (
     <div className={styles['message-page']}>
       <form className={styles['message-page__form']} onSubmit={handleSubmit}>
@@ -160,16 +167,19 @@ function MessagePage() {
         </div>
 
         {/* 6) 전송 버튼 */}
-        <div className={styles['message-page__actions']}>
-          <Button
-            type='submit'
-            variant='primary'
-            size='stretch'
+        <div className={styles['message-page__button-area']}>
+          <button
             className={styles['message-page__submit']}
             disabled={!isFormValid || loading}
+            type='submit'
           >
+            <img className={styles['message-page__button-logo']} src={logoIcon} />
             생성하기
-          </Button>
+          </button>
+          <button className={styles['message-page__back']} onClick={handleGoBackClick}>
+            <img className={styles['message-page__button-logo']} src={backIcon} />
+            돌아가기
+          </button>
         </div>
       </form>
     </div>
diff --git a/src/pages/MessagePage/MessagePage.module.scss b/src/pages/MessagePage/MessagePage.module.scss
index 075e190..dca2031 100644
--- a/src/pages/MessagePage/MessagePage.module.scss
+++ b/src/pages/MessagePage/MessagePage.module.scss
@@ -34,38 +34,73 @@
   }
 
   /* 전송 버튼 영역 */
-  &__actions {
+  &__button-area {
     display: flex;
     flex-direction: column;
-    align-items: center;
-    justify-content: center;
-  }
-  &__spacer {
-    height: 200px;
+    gap: 30px;
+
+    @include tablet {
+      flex-direction: row;
+      gap: 20px;
+    }
+
+    @include mobile {
+      flex-direction: row;
+      gap: 20px;
+    }
   }
 
   &__submit {
+    display: flex;
+    flex-direction: row;
+    align-items: center;
+    justify-content: center;
+    gap: 10px;
+    width: 100%;
+    padding: 14px 0;
     background-color: var(--color-purple-600);
-    color: var(--color-white);
-    padding: 0.75rem 2rem;
     border: none;
     border-radius: 12px;
-    font-size: 1rem;
-    font-weight: 600;
+    font-weight: 700;
+    font-size: 18px;
+    line-height: 28px;
+    color: var(--color-white);
     cursor: pointer;
-    transition: background-color 0.3s ease;
 
     &:hover {
       background-color: var(--color-purple-700);
     }
 
-    &:active {
-      background-color: var(--color-purple-800);
-    }
-
     &:disabled {
-      background-color: var(--color-gray-400);
+      background-color: var(--color-gray-300);
       cursor: not-allowed;
     }
   }
+
+  &__back {
+    display: flex;
+    flex-direction: row;
+    align-items: center;
+    justify-content: center;
+    gap: 10px;
+    width: 100%;
+    padding: 14px 0;
+    background-color: var(--color-white);
+    border: 1px solid var(--color-purple-600);
+    border-radius: 12px;
+    font-weight: 700;
+    font-size: 18px;
+    line-height: 28px;
+    color: var(--color-purple-600);
+    cursor: pointer;
+
+    &:hover {
+      background-color: var(--color-purple-100);
+    }
+  }
+
+  &__button-logo {
+    aspect-ratio: 1;
+    width: 18px;
+  }
 }
diff --git a/src/pages/MessagePage/components/ProfileSelector.jsx b/src/pages/MessagePage/components/ProfileSelector.jsx
index 569c582..190db3b 100644
--- a/src/pages/MessagePage/components/ProfileSelector.jsx
+++ b/src/pages/MessagePage/components/ProfileSelector.jsx
@@ -1,4 +1,4 @@
-import React, { useState, useEffect, useMemo } from 'react';
+import React, { useState, useEffect, useMemo, useRef } from 'react';
 import { useApi } from '@/hooks/useApi';
 import { getProfileImages } from '@/apis/profileImagesApi';
 import ImagePreloader from '@/components/ImagePreloader';
@@ -7,6 +7,9 @@ import AVATAR_PLACEHOLDER from '@/assets/images/image_profile_default.svg';
 import HorizontalScrollContainer from '@/components/HorizontalScrollContainer/HorizontalScrollContainer';
 import GradientImage from '@/components/GradientImage/GradientImage';
 import LoadingLabel from '@/components/LoadingLabel/LoadingLabel';
+import Button from '@/components/Button/Button';
+import { uploadImageToCloudinary } from '@/apis/syncApi/uploadImageToCloudinary';
+import { useToast } from '@/hooks/useToast';
 
 /**
  * 프로필 이미지 선택기
@@ -16,78 +19,143 @@ import LoadingLabel from '@/components/LoadingLabel/LoadingLabel';
  */
 
 function ProfileSelector({ onSelectImage }) {
+  const { showToast } = useToast();
   //  프로필 이미지 목록 가져오기 (API 호출)
   const { data: imageData, loading } = useApi(getProfileImages);
-
   // imageData가 배열이 아닐 경우 빈 배열로 초기화
-  const imageUrls = useMemo(() => {
+  const apiImageUrls = useMemo(() => {
     return Array.isArray(imageData?.imageUrls) ? imageData.imageUrls : [];
   }, [imageData]);
 
   // 선택된 이미지 URL 상태
   const [selectedUrl, setSelectedUrl] = useState('');
+  // 로딩된 이미지 개수 상태
   const [loadedCount, setLoadedCount] = useState(0);
-  const allLoaded = imageUrls.length > 0 && loadedCount >= imageUrls.length;
+  // 모든 이미지가 로드되었는지 여부
+  const allLoaded = apiImageUrls.length > 0 && loadedCount >= apiImageUrls.length;
+
+  /* ---------------- 사용자 업로드 이미지 ---------------- */
+  const [uploading, setUploading] = useState(false); // 업로드 진행 여부
+  const fileInputRef = useRef(null);
 
   // 로딩 후, 선택된 이미지 URL이 없으면 첫 번째 URL을 기본값으로 설정
   useEffect(() => {
-    if (!loading && imageUrls.length > 0 && !selectedUrl) {
+    if (!loading && apiImageUrls.length > 0 && !selectedUrl) {
       // 아직 선택된 값이 없으면 첫 번째 URL을 기본값으로
-      setSelectedUrl((prev) => prev || imageUrls[0]);
-      onSelectImage && onSelectImage(imageUrls[0]);
+      setSelectedUrl((prev) => prev || apiImageUrls[0]);
+      onSelectImage && onSelectImage(apiImageUrls[0]);
     }
-  }, [loading, imageUrls, selectedUrl, onSelectImage]);
+  }, [loading, apiImageUrls, selectedUrl, onSelectImage]);
 
   const handleImageSelect = (url) => {
     setSelectedUrl(url);
     onSelectImage && onSelectImage(url);
   };
 
+  const handleFileChange = async (e) => {
+    const file = e.target.files?.[0];
+    if (!file || !file.type.startsWith('image/')) {
+      alert('이미지 파일만 업로드할 수 있습니다.');
+      return;
+    }
+
+    const previewUrl = URL.createObjectURL(file);
+
+    setSelectedUrl(previewUrl);
+    onSelectImage?.(previewUrl);
+    setUploading(true);
+    // Cloudinary 업로드 시작
+    try {
+      const uploadedUrl = await uploadImageToCloudinary(file);
+      setSelectedUrl(uploadedUrl);
+      onSelectImage?.(uploadedUrl);
+    } catch (err) {
+      console.error(err);
+      showToast?.({
+        type: 'fail',
+        message: '프로필 이미지 업로드에 실패했습니다.',
+      });
+      setSelectedUrl('');
+      onSelectImage?.('');
+    } finally {
+      setUploading(false);
+      URL.revokeObjectURL(previewUrl);
+      e.target.value = '';
+    }
+  };
+
   const handleThumbLoad = () => setLoadedCount((c) => c + 1);
+  const uploadBtnClick = () => {
+    if (uploading) return; // 업로드 중이면 무시
+    if (fileInputRef.current) {
+      fileInputRef.current.value = ''; // *** 핵심: 값 초기화 ***
+      fileInputRef.current.click(); // 파일 다이얼로그 오픈
+    }
+  };
 
   return (
-    <div className={styles['profile-selector']}>
-      {/* 백그라운드에서 모든 이미지 미리 로드 */}
-      <ImagePreloader imageUrls={imageUrls} />
-      {/* 현재 선택된 이미지를 보여주는 영역 */}
-      <div className={styles['profile-selector__preview-container']}>
-        <GradientImage
-          src={selectedUrl || AVATAR_PLACEHOLDER}
-          alt='선택된 프로필'
-          className={styles['profile-selector__preview']}
-        />
-      </div>
+    <div className={styles['profile-selector__container']}>
+      <div className={styles['profile-selector']}>
+        {/* 백그라운드에서 모든 이미지 미리 로드 */}
+        <ImagePreloader imageUrls={apiImageUrls} />
+        {/* 현재 선택된 이미지를 보여주는 영역 */}
+        <div className={styles['profile-selector__preview-container']}>
+          <GradientImage
+            src={selectedUrl || AVATAR_PLACEHOLDER}
+            alt='선택된 프로필'
+            className={styles['profile-selector__preview']}
+          />
+        </div>
 
-      {/* 이미지 리스트 */}
-      <div className={styles['profile-selector__images-container']}>
-        <LoadingLabel
-          loading={!allLoaded}
-          loadingText='프로필 리스트 로딩 중...'
-          loadedText='프로필 이미지를 선택해주세요!'
-          className={styles['profile-selector__label']}
-        />
-        <HorizontalScrollContainer className={styles['profile-selector__images']}>
-          {imageUrls.map((url, idx) => {
-            const isSelected = url === selectedUrl;
+        {/* 이미지 리스트 */}
+        <div className={styles['profile-selector__images-container']}>
+          <LoadingLabel
+            loading={!allLoaded}
+            loadingText={uploading ? '이미지 업로드 중...' : '프로필 리스트 로딩 중...'}
+            loadedText='프로필 이미지를 선택해주세요!'
+            className={styles['profile-selector__label']}
+          />
+          <HorizontalScrollContainer className={styles['profile-selector__images']}>
+            {apiImageUrls.map((url, idx) => {
+              const isSelected = url === selectedUrl;
 
-            return (
-              <GradientImage
-                key={url}
-                src={url}
-                alt={`프로필 썸네일 ${idx + 1}`}
-                className={
-                  isSelected
-                    ? styles['profile-selector__image-selected']
-                    : styles['profile-selector__image']
-                }
-                onClick={() => handleImageSelect(url)}
-                draggable='false'
-                onLoaded={handleThumbLoad}
-              />
-            );
-          })}
-        </HorizontalScrollContainer>
+              return (
+                <GradientImage
+                  key={url}
+                  src={url}
+                  alt={`프로필 썸네일 ${idx + 1}`}
+                  className={
+                    isSelected
+                      ? styles['profile-selector__image-selected']
+                      : styles['profile-selector__image']
+                  }
+                  onClick={() => handleImageSelect(url)}
+                  draggable='false'
+                  onLoaded={handleThumbLoad}
+                />
+              );
+            })}
+          </HorizontalScrollContainer>
+        </div>
       </div>
+      <input
+        style={{ display: 'none' }}
+        type='file'
+        accept='image/*'
+        ref={fileInputRef}
+        onChange={handleFileChange}
+        disabled={uploading}
+      />
+
+      <Button
+        variant='outlined'
+        type='button'
+        size={36}
+        onClick={uploadBtnClick}
+        disabled={uploading}
+      >
+        내 프로필 업로드
+      </Button>
     </div>
   );
 }
diff --git a/src/pages/MessagePage/components/ProfileSelector.module.scss b/src/pages/MessagePage/components/ProfileSelector.module.scss
index 6e9dadb..83835b5 100644
--- a/src/pages/MessagePage/components/ProfileSelector.module.scss
+++ b/src/pages/MessagePage/components/ProfileSelector.module.scss
@@ -1,9 +1,18 @@
+.profile-selector__container {
+  display: flex;
+  flex-direction: column;
+  gap: 20px;
+}
+
 .profile-selector {
   width: 100%;
   display: flex;
   gap: 32px;
   align-items: center;
   justify-content: center;
+  @include mobile {
+    gap: 0;
+  }
 
   &__preview-container {
     display: flex;
@@ -31,6 +40,11 @@
     font-size: var(--font-size-16);
     font-weight: var(--font-weight-regular);
     color: var(--color-gray-500);
+    //텍스트 잘리지 않게
+    white-space: nowrap;
+    @include mobile {
+      margin-left: -40px;
+    }
   }
   &__images {
     gap: 4px;