diff --git a/pages/upload/upload.vue b/pages/upload/upload.vue
index afcdb2d..273f078 100644
--- a/pages/upload/upload.vue
+++ b/pages/upload/upload.vue
@@ -2129,8 +2129,7 @@ export default {
 
 				var sign = calculateSign(params)
 				params.sign = sign
-				var formBody = buildFormBodyWithImages(params, imageUrls)
-
+				var formBody = buildFormBodyWithImages(params, imageUrls, 'live_image')
 				const apiUrl = 'https://psi.api.buzhiyushu.cn/api/syncBook'
 				const token = uni.getStorageSync('token') || ''
 				console.log('【syncBook】请求地址:', apiUrl)
@@ -2280,7 +2279,7 @@ 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)
+				var formBody = buildFormBodyWithImages(params, imageUrls, 'live_image')
 
 				const apiUrl = 'https://psi.api.buzhiyushu.cn/api/syncBook'
 				console.log('【syncBook】请求地址:', apiUrl)
@@ -2392,8 +2391,8 @@ 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)
+			// 构建 form body（live_image[] 每个 URL 单独发送，product/save 需要 live_image[]）
+			var formBody = buildFormBodyWithImages(params, imageUrls, 'live_image[]')
 			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)
diff --git a/utils/api.js b/utils/api.js
index 0e92561..e6496dd 100644
--- a/utils/api.js
+++ b/utils/api.js
@@ -333,18 +333,19 @@ export function searchBookByIsbn(isbn) {
 export { calculateSign }
 
 /**
- * 构建 form-urlencoded body，支持 live_image[] 以多个单独字段发送
+ * 构建 form-urlencoded body，支持图片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
+ * @param {string} imageKey - 图片字段名（如 'live_image' 或 'live_image[]'）
  * @returns {string} form-urlencoded 字符串
  */
-function buildFormBodyWithImages(params, imageUrls) {
+function buildFormBodyWithImages(params, imageUrls, imageKey) {
 	var parts = []
 	for (var key in params) {
-		if (key === 'live_image[]') {
+		if (key === imageKey) {
 			// 每个 URL 单独发送
 			for (var j = 0; j < imageUrls.length; j++) {
-				parts.push(encodeURIComponent('live_image[]') + '=' + encodeURIComponent(imageUrls[j]))
+				parts.push(encodeURIComponent(key) + '=' + encodeURIComponent(imageUrls[j]))
 			}
 		} else {
 			parts.push(encodeURIComponent(key) + '=' + encodeURIComponent(String(params[key])))