diff --git a/src/views/mes/esopFile/FileForm.vue b/src/views/mes/esopFile/FileForm.vue
index 750f5218..076ca0c5 100644
--- a/src/views/mes/esopFile/FileForm.vue
+++ b/src/views/mes/esopFile/FileForm.vue
@@ -58,6 +58,7 @@
       v-model:file-list="fileList"
       :action="uploadUrl"
       :auto-upload="false"
+      :before-upload="beforeUpload"
       :data="data"
       :disabled="isEdit"
       :limit="1"
@@ -155,6 +156,13 @@ defineExpose({ open }) // 提供 open 方法，用于打开弹窗
 const handleFileChange = (file) => {
   data.value.path = file.name
 }
+const beforeUpload = (file) => {
+  const isLt2M = file.size / 1024 / 1024 < 100
+  if (!isLt2M) {
+    message.error('上传文件大小不能超过 100MB!')
+  }
+  return isLt2M
+}
 
 /** 提交表单 */
 const submitFileForm = async () => {