diff --git a/es/components/extraFile/upload/index.js b/es/components/extraFile/upload/index.js
index 0d48a62b3..633c33c32 100644
--- a/es/components/extraFile/upload/index.js
+++ b/es/components/extraFile/upload/index.js
@@ -74,6 +74,7 @@ export default OakComponent({
         entityId: '',
         theme: 'image',
         style: '', // 各渠道图片样式
+        chunkOptions: undefined,
     },
     lifetimes: {
         async detached() {
@@ -183,9 +184,7 @@ export default OakComponent({
                 await this.features.extraFile.autoUpload({
                     extraFile: updateData,
                     file: file,
-                    chunkOptions: {
-                        chunkSize: 100 * 1024 * 1024, // 100MB
-                    },
+                    chunkOptions: this.props.chunkOptions,
                     getPercent: (percentage) => {
                         const currentFiles = this.state.files;
                         const index = currentFiles.findIndex((ele) => ele.objectId ===
diff --git a/es/utils/files/slice.js b/es/utils/files/slice.js
index b0f836f74..012bbbb1e 100644
--- a/es/utils/files/slice.js
+++ b/es/utils/files/slice.js
@@ -24,6 +24,7 @@ export async function sliceFile(file, chunkSize, partCount) {
 export async function sliceFileForMp(filePath, chunkSize, partCount) {
     const fs = wx.getFileSystemManager();
     const tempDir = `${wx.env.USER_DATA_PATH}/oak_upload_temp`;
+    assert(chunkSize <= 10 * 1024 * 1024, '小程序下，单个分片大小不能超过 10MB'); // 微信小程序限制单个文件不能超过10MB
     // 确保临时目录存在
     try {
         fs.accessSync(tempDir);
diff --git a/lib/utils/files/slice.js b/lib/utils/files/slice.js
index 60f343c3a..4196cf0e1 100644
--- a/lib/utils/files/slice.js
+++ b/lib/utils/files/slice.js
@@ -30,6 +30,7 @@ async function sliceFile(file, chunkSize, partCount) {
 async function sliceFileForMp(filePath, chunkSize, partCount) {
     const fs = wx.getFileSystemManager();
     const tempDir = `${wx.env.USER_DATA_PATH}/oak_upload_temp`;
+    (0, assert_1.default)(chunkSize <= 10 * 1024 * 1024, '小程序下，单个分片大小不能超过 10MB'); // 微信小程序限制单个文件不能超过10MB
     // 确保临时目录存在
     try {
         fs.accessSync(tempDir);
diff --git a/src/components/extraFile/upload/index.ts b/src/components/extraFile/upload/index.ts
index 840c8a76f..e8756d801 100644
--- a/src/components/extraFile/upload/index.ts
+++ b/src/components/extraFile/upload/index.ts
@@ -1,5 +1,6 @@
 import { EntityDict } from '../../../oak-app-domain';
-import { FileState } from '../../../features/extraFile';
+import { ChunkOptions,
+FileState } from '../../../features/extraFile';
 import { EntityDict as BaseEntityDict } from 'oak-domain/lib/types/Entity';
 import { ReactComponentProps } from 'oak-frontend-base/lib/types/Page';
 import { generateNewId } from 'oak-domain/lib/utils/uuid';
@@ -105,6 +106,7 @@ export default OakComponent({
         entityId: '',
         theme: 'image' as Theme,
         style: '', // 各渠道图片样式
+        chunkOptions: undefined as ChunkOptions | undefined,
     },
     lifetimes: {
         async detached() {
@@ -245,9 +247,7 @@ export default OakComponent({
                     {
                         extraFile: updateData as EntityDict['extraFile']['OpSchema'],
                         file: file,
-                        chunkOptions: {
-                            chunkSize: 100 * 1024 * 1024, // 100MB
-                        },
+                        chunkOptions: this.props.chunkOptions,
                         getPercent: (percentage: number) => {
                             const currentFiles = this.state.files as EnhancedExtraFile[];
                             const index = currentFiles.findIndex(
diff --git a/src/utils/files/slice.ts b/src/utils/files/slice.ts
index 92481d05c..921400f6a 100644
--- a/src/utils/files/slice.ts
+++ b/src/utils/files/slice.ts
@@ -26,6 +26,8 @@ export async function sliceFile(file: string | File, chunkSize: number, partCoun
 export async function sliceFileForMp(filePath: string, chunkSize: number, partCount: number): Promise<string[]> {
     const fs = wx.getFileSystemManager();
     const tempDir = `${wx.env.USER_DATA_PATH}/oak_upload_temp`;
+
+    assert(chunkSize <= 10 * 1024 * 1024, '小程序下，单个分片大小不能超过 10MB'); // 微信小程序限制单个文件不能超过10MB
         
     // 确保临时目录存在
     try {