diff --git a/packages/ui/src/BasicLayout/style/Header.ts b/packages/ui/src/BasicLayout/style/Header.ts
index 86755a527..cddd5a524 100644
--- a/packages/ui/src/BasicLayout/style/Header.ts
+++ b/packages/ui/src/BasicLayout/style/Header.ts
@@ -91,20 +91,6 @@ export const genHeaderStyle: GenerateStyle<HeaderToken> = (
           }
         }
       },
-
-    },
-
-    [`${componentCls}-welcome`]: {
-      color: "#fff",
-      backgroundColor: "transparent",
-      borderBottom: "none",
-      [`${componentCls}-extra`]: {
-        [`${antCls}-btn`]: {
-          color: "#fff",
-          backgroundColor: "rgba(255, 255, 255, 0.25)",
-          border: "0.5px solid rgba(0, 0, 0, 0.1)",
-        },
-      },
     },
 
     [`${componentCls}-about-wrapper`]: {
diff --git a/packages/ui/src/Welcome/index.less b/packages/ui/src/Welcome/index.less
index 8bf9eb3e1..8483bbfe1 100644
--- a/packages/ui/src/Welcome/index.less
+++ b/packages/ui/src/Welcome/index.less
@@ -5,8 +5,7 @@
 .@{prefix}-container {
   height: 100%;
   padding-bottom: 0 !important;
-  overflow: auto;
-  background-color: #fff;
+  background-color: @colorBgContainer;
 
   .tech-page-container-content {
     // 由于 umi 的本地开发和线上打包的 CSS 样式优先级不一致，导致下列样式在线上环境不生效，因此先加上 !important
@@ -18,7 +17,7 @@
     height: 272px;
     padding-top: 72px;
     padding-left: 100px;
-    color: #fff;
+    color: @colorBgContainer;
     background-repeat: no-repeat;
     background-size: 100% 100%;
 
@@ -145,7 +144,7 @@
   // margin-right: 30px;
   margin-bottom: 30px;
   padding: 20px 30px 20px 0;
-  background: #fff;
+  background: @colorBgContainer;
   border: 1px solid rgba(0, 0, 0, 0.06);
   border-radius: 2px;
 
@@ -175,7 +174,7 @@
   }
 
   .@{prefix}-step-operations {
-    color: #0090ff;
+    color: @colorPrimary;
     font-size: 14px;
     line-height: 22px;
   }
diff --git a/packages/ui/src/Welcome/index.tsx b/packages/ui/src/Welcome/index.tsx
index d7f4d5fb7..9f94b08f8 100644
--- a/packages/ui/src/Welcome/index.tsx
+++ b/packages/ui/src/Welcome/index.tsx
@@ -149,7 +149,13 @@ const Welcome: React.FC<WelcomeProps> = ({
             {isDefault && (
               <Col span={24}>
                 <div className={`${prefix}-btn-wrapper`}>
-                  <Button type="primary" icon={<PlusOutlined />} block={true} {...buttonProps}>
+                  <Button
+                    size="large"
+                    type="primary"
+                    icon={<PlusOutlined />}
+                    block={true}
+                    {...buttonProps}
+                  >
                     {buttonText}
                   </Button>
                 </div>