diff --git a/src/js/components/form/KLUpload/components/FileUnit/index.html b/src/js/components/form/KLUpload/components/FileUnit/index.html
index f7d584ab..2fd1c52f 100644
--- a/src/js/components/form/KLUpload/components/FileUnit/index.html
+++ b/src/js/components/form/KLUpload/components/FileUnit/index.html
@@ -1,4 +1,4 @@
-<div class="m-file-unit">
+<div class="m-file-unit {file.class}">
     <div class="m-content">
         {#if type === 'image'}
             <div class="m-img-wrapper" on-click={this.onPreview($event)}>
diff --git a/src/js/components/form/KLUpload/components/UploadBase/index.js b/src/js/components/form/KLUpload/components/UploadBase/index.js
index 0f54bea7..09b0a686 100644
--- a/src/js/components/form/KLUpload/components/UploadBase/index.js
+++ b/src/js/components/form/KLUpload/components/UploadBase/index.js
@@ -174,6 +174,7 @@ const UploadBase = Component.extend({
           flag: file.flag,
           uid: file.uid,
           status: 'success',
+          class: file.class || '',
         };
 
         if (fileunit.flag !== Config.flagMap.DELETED) {
@@ -560,7 +561,8 @@ const UploadBase = Component.extend({
 
     Object.keys(typeMap).forEach((key) => {
       const reg = new RegExp(`${key}$`);
-      if (reg.test(type) || (!type && reg.test(name))) {
+      // 名称后缀不区分大小写
+      if (reg.test(type) || (!type && reg.test(`${name}`.toLowerCase()))) {
         typeStr = typeMap[key];
       }
     });
diff --git a/src/js/components/form/KLUpload/index.md b/src/js/components/form/KLUpload/index.md
index 893a7055..63845dc7 100644
--- a/src/js/components/form/KLUpload/index.md
+++ b/src/js/components/form/KLUpload/index.md
@@ -146,8 +146,9 @@ var component = new NEKUI.Component({
     template: template,
     data: {
         list: [{
-          name: 'Game.jpg',
-          url: 'http://haitao.nos.netease.com/906f417c7c964c0798adf9d0bf1b5c8c.jpg'
+          name: 'Game.JPG',
+          url: 'http://haitao.nos.netease.com/906f417c7c964c0798adf9d0bf1b5c8c.jpg',
+          class: 'my-img-test'
         }, {
           name: 'Kaola.jpg',
           url: 'http://haitao.nos.netease.com/9b73692b3a6b46d2be1de7d3be893834.jpg'