diff --git a/client/src/apis/fetcher.ts b/client/src/apis/fetcher.ts
index a1c205739..35671b167 100644
--- a/client/src/apis/fetcher.ts
+++ b/client/src/apis/fetcher.ts
@@ -21,7 +21,7 @@ type RequestInitWithMethod = Omit<RequestInit, 'method'> & {method: Method};
 
 type HeadersType = [string, string][] | Record<string, string> | Headers;
 
-export type Body = BodyInit | object | null;
+export type Body = BodyInit | object | null; //init안에 FormDATA있음.
 
 type RequestProps = {
   baseUrl?: string;
@@ -32,6 +32,12 @@ type RequestProps = {
   method: Method;
 };
 
+type CreateRequestInitProps = {
+  body?: Body;
+  method: Method;
+  headers?: HeadersType;
+};
+
 type RequestMethodProps = Omit<RequestProps, 'method'>;
 
 type FetchType = {
@@ -85,17 +91,26 @@ const prepareRequest = ({baseUrl = API_BASE_URL, method, endpoint, headers, body
 
   if (queryParams) url += `?${objectToQueryString(queryParams)}`;
 
+  const requestInit = createRequestInit({method, headers, body});
+
+  return {url, requestInit};
+};
+
+const createRequestInit = ({method, headers, body}: CreateRequestInitProps) => {
   const requestInit: RequestInitWithMethod = {
     credentials: 'include',
-    headers: {
-      'Content-Type': 'application/json',
-      ...headers,
-    },
     method,
-    body: body ? JSON.stringify(body) : null,
   };
 
-  return {url, requestInit};
+  if (body instanceof FormData) {
+    return {...requestInit, body};
+  } else {
+    return {
+      ...requestInit,
+      headers: {...headers, 'Content-Type': 'application/json'},
+      body: body ? JSON.stringify(body) : null,
+    };
+  }
 };
 
 const executeRequest = async ({url, requestInit, errorHandlingStrategy}: WithErrorHandlingStrategy<FetchType>) => {
@@ -114,7 +129,7 @@ const executeRequest = async ({url, requestInit, errorHandlingStrategy}: WithErr
     return response;
   } catch (error) {
     if (error instanceof Error) {
-      throw error; // 그대로 RequestError 또는 Error 인스턴스를 던집니다.
+      throw error;
     }
 
     throw error;
diff --git a/client/src/apis/request/images.ts b/client/src/apis/request/images.ts
index b881ee3ac..e17061c3c 100644
--- a/client/src/apis/request/images.ts
+++ b/client/src/apis/request/images.ts
@@ -10,26 +10,7 @@ export interface RequestPostImages {
 }
 
 export const requestPostImages = async ({eventId, formData}: WithEventId<RequestPostImages>) => {
-  // return await requestPostWithoutResponse({
-  //   baseUrl: BASE_URL.HD,
-  //   endpoint: `${ADMIN_API_PREFIX}/${eventId}/images`,
-  //   headers: {
-  //     'Content-Type': 'multipart/form-data',
-  //   },
-  //   body: formData,
-  // });
-
-  // TODO: (@todari): 기존의 request 방식들은 기본적으로
-  // header를 Content-Type : application/json 으로 보내주고 있음
-  // multipart/form-data 요청을 보내기 위해선 header Content-Type을 빈 객체로 전달해야 함
-  fetch(`${BASE_URL.HD}${ADMIN_API_PREFIX}/${eventId}/images`, {
-    credentials: 'include',
-    // headers: {
-    //   'Content-Type': 'multipart/form-data',
-    // },
-    method: 'POST',
-    body: formData,
-  });
+  await requestPostWithoutResponse({endpoint: `${ADMIN_API_PREFIX}/${eventId}/images`, body: formData});
 };
 
 export const requestGetImages = async ({eventId}: WithEventId) => {
diff --git a/client/src/hooks/queries/images/useRequestPostImages.ts b/client/src/hooks/queries/images/useRequestPostImages.ts
index 619989694..fa49463e7 100644
--- a/client/src/hooks/queries/images/useRequestPostImages.ts
+++ b/client/src/hooks/queries/images/useRequestPostImages.ts
@@ -10,14 +10,14 @@ const useRequestPostImages = () => {
   const eventId = getEventIdByUrl();
   const queryClient = useQueryClient();
 
-  const {mutate, ...rest} = useMutation({
+  const {mutateAsync, ...rest} = useMutation({
     mutationFn: ({formData}: RequestPostImages) => requestPostImages({eventId, formData}),
     onSuccess: () => {
-      queryClient.invalidateQueries({queryKey: [QUERY_KEYS.images]});
+      queryClient.removeQueries({queryKey: [QUERY_KEYS.images]});
     },
   });
 
-  return {postImages: mutate, ...rest};
+  return {postImages: mutateAsync, ...rest};
 };
 
 export default useRequestPostImages;
diff --git a/client/src/hooks/useAddImagesPage.ts b/client/src/hooks/useAddImagesPage.ts
index 0bd45f490..917a109a3 100644
--- a/client/src/hooks/useAddImagesPage.ts
+++ b/client/src/hooks/useAddImagesPage.ts
@@ -16,7 +16,7 @@ const useAddImagesPage = () => {
   const [images, setImages] = useState<Array<LoadedImage | AddedImage>>([]);
   const [isPrevImageDeleted, setIsPrevImageDeleted] = useState(false);
   const addedImages = images.filter(image => image instanceof File);
-  const {images: prevImages} = useRequestGetImages();
+  const {images: prevImages, isSuccess} = useRequestGetImages();
   const urls = images.map(image => {
     if (image instanceof File) {
       return URL.createObjectURL(image);
@@ -29,15 +29,22 @@ const useAddImagesPage = () => {
   const navigate = useNavigate();
   const eventId = getEventIdByUrl();
 
-  const {postImages, isPending, isSuccess: isSuccessPostImage} = useRequestPostImages();
+  const {postImages, isPending} = useRequestPostImages();
   const {deleteImage} = useRequestDeleteImage();
 
   useEffect(() => {
-    if (!prevImages) return;
+    if (!isSuccess) return;
     setImages([...prevImages]);
-  }, [prevImages]);
+  }, [prevImages, isSuccess]);
+
+  useEffect(() => {
+    console.log(images);
+  }, [images]);
 
   const handleChangeImages = (event: React.ChangeEvent<HTMLInputElement>) => {
+    //TODO: (@Todari): 현재 A 이미지 추가 -> A 이미지 x 버튼 눌러 취소 -> 다시 A 이미지 추가 시 업로드 되지 않음
+    //                 event.target.files가 변경되지 않기 때문에 onChange에 넣은
+    //                 handleChangeImages가 실행되지 않아 일어나는 문제로 추정
     if (event.target.files) {
       const dataTransfer = new DataTransfer();
 
@@ -57,24 +64,26 @@ const useAddImagesPage = () => {
       deleteImage({
         imageId: images[index].id,
       });
-      setIsPrevImageDeleted(false);
+      setIsPrevImageDeleted(true);
     } else {
       setImages(prev => prev.filter((_, idx) => idx !== index));
     }
   };
 
-  const canSubmit = !!addedImages || isPrevImageDeleted;
+  const canSubmit = addedImages.length !== 0 || isPrevImageDeleted;
 
-  const submitImages = () => {
-    const formData = new FormData();
+  const submitImages = async () => {
+    if (addedImages.length !== 0) {
+      const formData = new FormData();
 
-    if (!addedImages) return;
+      for (let i = 0; i < addedImages.length; i++) {
+        formData.append('images', addedImages[i], addedImages[i].name);
+      }
 
-    for (let i = 0; i < addedImages.length; i++) {
-      formData.append('images', addedImages[i], addedImages[i].name);
+      await postImages({formData});
     }
 
-    postImages({formData});
+    navigate(`/event/${eventId}/admin`);
   };
 
   useEffect(() => {
@@ -85,11 +94,6 @@ const useAddImagesPage = () => {
     };
   }, []);
 
-  useEffect(() => {
-    if (!isSuccessPostImage) return;
-    navigate(`/event/${eventId}/admin`);
-  }, [isSuccessPostImage]);
-
   return {fileInputRef, handleChangeImages, urls, handleDeleteImage, isPending, canSubmit, submitImages};
 };