diff --git a/pages/upload/upload.vue b/pages/upload/upload.vue
index 3f598ea..afcdb2d 100644
--- a/pages/upload/upload.vue
+++ b/pages/upload/upload.vue
@@ -890,7 +890,7 @@
 </template>
 
 <script>
-import { getWarehouseList, getLocationList, searchBookByIsbn, calculateSign } from '@/utils/api.js'
+import { getWarehouseList, getLocationList, searchBookByIsbn, calculateSign, buildFormBodyWithImages } from '@/utils/api.js'
 import { login as kongfzLogin, searchProducts, searchFacet } from '@/utils/kongfz.js'
 import { uploadImages } from '@/utils/minio.js'
 
@@ -2129,6 +2129,7 @@ export default {
 
 				var sign = calculateSign(params)
 				params.sign = sign
+				var formBody = buildFormBodyWithImages(params, imageUrls)
 
 				const apiUrl = 'https://psi.api.buzhiyushu.cn/api/syncBook'
 				const token = uni.getStorageSync('token') || ''
@@ -2143,7 +2144,7 @@ export default {
 							'Content-Type': 'application/x-www-form-urlencoded',
 							'Authorization': 'Bearer ' + token
 						},
-						data: params,
+						data: formBody,
 						success: function (r) { resolve(r) },
 						fail: function (e) { reject(e) }
 					})
@@ -2279,6 +2280,7 @@ export default {
 				// 计算签名（与仓库列表一致的签名算法）
 				var sign = calculateSign(params)
 				params.sign = sign
+				var formBody = buildFormBodyWithImages(params, imageUrls)
 
 				const apiUrl = 'https://psi.api.buzhiyushu.cn/api/syncBook'
 				console.log('【syncBook】请求地址:', apiUrl)
@@ -2292,7 +2294,7 @@ export default {
 							'Content-Type': 'application/x-www-form-urlencoded',
 							'Authorization': 'Bearer ' + token
 						},
-						data: params,
+						data: formBody,
 						success: function (r) { resolve(r) },
 						fail: function (e) { reject(e) }
 					})
@@ -2390,6 +2392,8 @@ export default {
 			}
 			var sign = calculateSign(params)
 			params.sign = sign
+			// 构建 form body（live_image[] 每个 URL 单独发送）
+			var formBody = buildFormBodyWithImages(params, imageUrls)
 			var saveUrl = 'https://psi.api.buzhiyushu.cn/api/product/save'
 			console.log('【保存商品】请求地址:', saveUrl)
 			console.log('【保存商品】请求参数:', params)
@@ -2403,7 +2407,7 @@ export default {
 							'Content-Type': 'application/x-www-form-urlencoded',
 							'Authorization': 'Bearer ' + token
 						},
-						data: params,
+						data: formBody,
 						success: function (r) { resolve(r) },
 						fail: function (e) { reject(e) }
 					})
diff --git a/utils/api.js b/utils/api.js
index 553dd0a..0e92561 100644
--- a/utils/api.js
+++ b/utils/api.js
@@ -332,8 +332,32 @@ export function searchBookByIsbn(isbn) {
 // 导出 calculateSign 供组件按名导入
 export { calculateSign }
 
+/**
+ * 构建 form-urlencoded body，支持 live_image[] 以多个单独字段发送
+ * @param {Object} params - 已包含 sign 的 params 对象（live_image[] 为逗号拼接）
+ * @param {string[]} imageUrls - 图片 URL 数组
+ * @returns {string} form-urlencoded 字符串
+ */
+function buildFormBodyWithImages(params, imageUrls) {
+	var parts = []
+	for (var key in params) {
+		if (key === 'live_image[]') {
+			// 每个 URL 单独发送
+			for (var j = 0; j < imageUrls.length; j++) {
+				parts.push(encodeURIComponent('live_image[]') + '=' + encodeURIComponent(imageUrls[j]))
+			}
+		} else {
+			parts.push(encodeURIComponent(key) + '=' + encodeURIComponent(String(params[key])))
+		}
+	}
+	return parts.join('&')
+}
+
+export { buildFormBodyWithImages }
+
 export default {
 	calculateSign,
+	buildFormBodyWithImages,
 	getWarehouseList,
 	getLocationList,
 	psiLogin,