diff --git a/src/assets/img/banner/yb1.jpg b/src/assets/img/banner/yb1.jpg
new file mode 100644
index 0000000..bbc62a2
Binary files /dev/null and b/src/assets/img/banner/yb1.jpg differ
diff --git a/src/assets/img/banner/yb1.png b/src/assets/img/banner/yb1.png
deleted file mode 100644
index 957f22f..0000000
Binary files a/src/assets/img/banner/yb1.png and /dev/null differ
diff --git a/src/assets/img/banner/yb4.jpg b/src/assets/img/banner/yb4.jpg
deleted file mode 100644
index a04f54b..0000000
Binary files a/src/assets/img/banner/yb4.jpg and /dev/null differ
diff --git a/src/views/home/index.vue b/src/views/home/index.vue
index ee499a0..cc2370e 100644
--- a/src/views/home/index.vue
+++ b/src/views/home/index.vue
@@ -14,7 +14,7 @@
           height="660px"
         >
           <el-carousel-item class="el_carousel_item">
-            <img src="../../assets/img/banner/yb4.jpg" />
+            <img src="../../assets/img/banner/yb1.jpg" />
           </el-carousel-item>
           <el-carousel-item class="el_carousel_item">
             <img src="../../assets/img/banner/yb2.jpg" />