diff --git a/src/views/Content/ContentMainTopBanner.vue b/src/views/Content/ContentMainTopBanner.vue
index 5ee3e4f..e4596fc 100644
--- a/src/views/Content/ContentMainTopBanner.vue
+++ b/src/views/Content/ContentMainTopBanner.vue
@@ -290,6 +290,47 @@
       </v-card>
     </v-dialog>
 
+    <!-- 이미지 크롭 다이얼로그 (CropperJS) -->
+    <v-dialog
+      v-model="show_crop_dialog"
+      max-width="900px"
+      persistent
+    >
+      <v-card class="cropper-card">
+        <v-card-title>
+          이미지 크롭 (1:1)
+        </v-card-title>
+        <v-card-text class="cropper-card-text">
+          <div class="cropper-canvas-wrap">
+            <img
+              v-if="crop_src"
+              ref="cropperImage"
+              :src="crop_src"
+              alt="crop"
+              class="cropper-dialog-img"
+            >
+          </div>
+        </v-card-text>
+        <v-card-actions v-show="!is_loading">
+          <v-spacer />
+          <v-btn
+            color="blue darken-1"
+            text
+            @click="handleCropCancel"
+          >
+            취소
+          </v-btn>
+          <v-btn
+            color="blue darken-1"
+            text
+            @click="handleCropConfirm"
+          >
+            확인
+          </v-btn>
+        </v-card-actions>
+      </v-card>
+    </v-dialog>
+
     <v-dialog
       v-model="show_delete_confirm_dialog"
       max-width="400px"
@@ -325,6 +366,7 @@
 <script>
 import Draggable from "vuedraggable";
 import debounce from "lodash/debounce";
+import Cropper from 'cropperjs'
 
 import * as seriesApi from "@/api/audio_content_series"
 import * as memberApi from "@/api/member";
@@ -343,6 +385,11 @@ export default {
             is_modify: false,
             show_write_dialog: false,
             show_delete_confirm_dialog: false,
+            // 이미지 크롭용 상태
+            show_crop_dialog: false,
+            cropper: null,
+            crop_src: null,
+            selected_file_for_crop: null,
             selected_banner: {},
             banner: {type: 'CREATOR', tab_id: 1, lang: 'ko'},
             banners: [],
@@ -386,14 +433,101 @@ export default {
     },
 
     methods: {
-        imageAdd(payload) {
+        async imageAdd(payload) {
             const file = payload;
-            if (file) {
-                this.banner.thumbnail_image_url = URL.createObjectURL(file)
-                URL.revokeObjectURL(file)
-            } else {
+            // 파일 해제 시 초기화
+            if (!file) {
+                if (this.banner.thumbnail_image_url) {
+                    URL.revokeObjectURL(this.banner.thumbnail_image_url)
+                }
+                this.banner.thumbnail_image = null
                 this.banner.thumbnail_image_url = null
+                return
             }
+
+            // CropperJS 다이얼로그 오픈 흐름
+            if (this.crop_src) {
+              URL.revokeObjectURL(this.crop_src)
+            }
+            this.selected_file_for_crop = file
+            this.crop_src = URL.createObjectURL(file)
+            this.show_crop_dialog = true
+
+            this.$nextTick(() => {
+              this.initCropper()
+            })
+        },
+
+        initCropper() {
+          const imageEl = this.$refs.cropperImage
+          if (!imageEl) return
+          // 기존 인스턴스 제거
+          if (this.cropper) {
+            this.cropper.destroy()
+            this.cropper = null
+          }
+          this.cropper = new Cropper(imageEl, {
+            aspectRatio: 1,
+            viewMode: 1,
+            autoCropArea: 1,
+            movable: true,
+            zoomable: true,
+            scalable: false,
+            rotatable: false,
+            responsive: true,
+            background: false,
+          })
+        },
+
+        destroyCropper() {
+          if (this.cropper) {
+            this.cropper.destroy()
+            this.cropper = null
+          }
+        },
+
+        async handleCropConfirm() {
+          if (!this.cropper || !this.selected_file_for_crop) return
+          try {
+            this.is_loading = true
+            const mime = this.selected_file_for_crop.type && /^image\//.test(this.selected_file_for_crop.type)
+              ? this.selected_file_for_crop.type
+              : 'image/png'
+            const canvas = this.cropper.getCroppedCanvas()
+            await new Promise((resolve, reject) => {
+              canvas.toBlob((blob) => {
+                if (!blob) return reject(new Error('크롭된 이미지를 생성할 수 없습니다.'))
+                const croppedFile = new File([blob], this.selected_file_for_crop.name || 'image.png', { type: mime })
+                // 기존 미리보기 URL 해제
+                if (this.banner.thumbnail_image_url) {
+                  URL.revokeObjectURL(this.banner.thumbnail_image_url)
+                }
+                this.banner.thumbnail_image = croppedFile
+                this.banner.thumbnail_image_url = URL.createObjectURL(croppedFile)
+                resolve()
+              }, mime)
+            })
+            this.show_crop_dialog = false
+          } catch (e) {
+            this.notifyError('이미지 크롭 중 오류가 발생했습니다. 다시 시도해 주세요.')
+          } finally {
+            this.is_loading = false
+            this.cleanupCropDialog()
+          }
+        },
+
+        handleCropCancel() {
+          this.show_crop_dialog = false
+          this.cleanupCropDialog()
+        },
+
+        cleanupCropDialog() {
+          this.destroyCropper()
+          if (this.crop_src) {
+            URL.revokeObjectURL(this.crop_src)
+            this.crop_src = null
+          }
+          this.selected_file_for_crop = null
         },
 
         cancel() {
@@ -818,3 +952,30 @@ export default {
     margin-top: 10px;
 }
 </style>
+
+<style>
+/* CropperJS 기본 스타일 */
+@import '~cropperjs/dist/cropper.css';
+
+.cropper-card {
+  max-height: 80vh; /* 뷰포트 대비 제한하여 하단 버튼이 항상 보이도록 */
+  display: flex;
+  flex-direction: column;
+}
+
+.cropper-card-text {
+  flex: 1;
+  overflow: auto; /* 내부 스크롤로 이미지만 스크롤되게 함 */
+}
+
+.cropper-canvas-wrap {
+  width: 100%;
+  height: 60vh; /* 이미지 표시 영역 고정 */
+}
+
+.cropper-dialog-img {
+  max-width: 100%;
+  max-height: 100%;
+  display: block;
+}
+</style>