diff --git a/apps/cs/src/pages/popup/api/popup-service.ts b/apps/cs/src/pages/popup/api/popup-service.ts
index b82d5f473..cff4cb55e 100644
--- a/apps/cs/src/pages/popup/api/popup-service.ts
+++ b/apps/cs/src/pages/popup/api/popup-service.ts
@@ -41,6 +41,10 @@ export class PopupApiService implements PopupService {
       validatedData,
     );
   }
+
+  public async deletePopup(popupSn: number): Promise<void> {
+    await client.delete(`${ENDPOINT.CMS_SERVICE.POPUPS}/${popupSn}`);
+  }
 }
 
 export const PopupApi = new PopupApiService();
diff --git a/apps/cs/src/pages/popup/model/popup-interface.ts b/apps/cs/src/pages/popup/model/popup-interface.ts
index 6952d873f..c565df8ca 100644
--- a/apps/cs/src/pages/popup/model/popup-interface.ts
+++ b/apps/cs/src/pages/popup/model/popup-interface.ts
@@ -68,4 +68,5 @@ export interface PopupService {
   getPopupInfo(popupSn: number): Promise<PopupInfo>;
   createPopup(data: PopupFormData): Promise<void>;
   updatePopup(popupSn: number, data: PopupUpdateFormData): Promise<void>;
+  deletePopup(popupSn: number): Promise<void>;
 }
diff --git a/apps/cs/src/pages/popup/ui/modify-page.tsx b/apps/cs/src/pages/popup/ui/modify-page.tsx
index fed70cbbb..cffce11bd 100644
--- a/apps/cs/src/pages/popup/ui/modify-page.tsx
+++ b/apps/cs/src/pages/popup/ui/modify-page.tsx
@@ -52,6 +52,13 @@ function ModifyPage({ popupSn }: { popupSn: number }) {
     },
   });
 
+  const { mutateAsync: deletePopup } = useMutationWrapper({
+    mutationFn: () => PopupApi.deletePopup(popupSn),
+    onSuccess: () => {
+      alert("삭제되었습니다.", router.back);
+    },
+  });
+
   const { mutateAsync: savePostingHistory } = useMutationWrapper({
     mutationFn: (data: PostPayload[]) => PostingApi.savePosting(data),
     onSuccess: () => {
@@ -101,7 +108,12 @@ function ModifyPage({ popupSn }: { popupSn: number }) {
         <div className="card-header">
           <h3 className="text-2xl font-medium text-label">팝업 수정</h3>
         </div>
-        <PopupForm form={form} handleSave={updatePopup} />
+        <PopupForm
+          form={form}
+          popupSn={popupSn}
+          handleSave={updatePopup}
+          handleDelete={deletePopup}
+        />
       </div>
       <div className="card card-border">
         <div className="card-header">
diff --git a/apps/cs/src/pages/popup/ui/popup-form.tsx b/apps/cs/src/pages/popup/ui/popup-form.tsx
index 8e1e5783f..3147542ed 100644
--- a/apps/cs/src/pages/popup/ui/popup-form.tsx
+++ b/apps/cs/src/pages/popup/ui/popup-form.tsx
@@ -32,7 +32,7 @@ const Editor = dynamic(
 
 type PopupFormProps<T extends PopupFormData | PopupUpdateFormData> = {
   form: UseFormReturn<T>;
-  popupSn?: string;
+  popupSn?: number;
   handleSave: (data: T) => Promise<void>;
   handleDelete?: () => Promise<void>;
 };
diff --git a/apps/cs/src/widgets/post/ui/general-file-uploader.tsx b/apps/cs/src/widgets/post/ui/general-file-uploader.tsx
index 2012201da..cbd77ca18 100644
--- a/apps/cs/src/widgets/post/ui/general-file-uploader.tsx
+++ b/apps/cs/src/widgets/post/ui/general-file-uploader.tsx
@@ -102,7 +102,7 @@ function GeneralFileUploader<T extends { atflCd?: string | null }>({
                 <span>{attachment.orgnlFileNm}</span>
                 <Button
                   color="lightGray"
-                  className="flex size-7 items-center justify-center rounded-full p-0"
+                  className="flex size-7 shrink-0 items-center justify-center rounded-full p-0"
                   onClick={() =>
                     setDeleteAttachmentIds([...deleteAttachmentIds, atflId])
                   }