diff --git a/src/layout/components/NavLeft/Item.vue b/src/layout/components/NavLeft/Item.vue
index af7fb99b8..d9aa34cb7 100644
--- a/src/layout/components/NavLeft/Item.vue
+++ b/src/layout/components/NavLeft/Item.vue
@@ -25,19 +25,6 @@ export default {
       display: 'inline-block'
     }
 
-    const tooltipStyle = {
-      position: 'fixed',
-      backgroundColor: 'rgba(0, 0, 0, 0.8)',
-      color: '#fff',
-      padding: '5px 10px',
-      borderRadius: '4px',
-      fontSize: '12px',
-      zIndex: 9999,
-      display: 'none',
-      transition: 'opacity 0.3s',
-      pointerEvents: 'none'
-    }
-
     if (icon) {
       if (icon.startsWith('fa-')) {
         vNodes.push(<i class={`fa ${icon}`} />)
@@ -47,55 +34,9 @@ export default {
     }
 
     if (title) {
-      const titleSpan = (
-        <span
-          slot='title'
-          style={ellipsisStyle}
-          onMouseenter={(e) => {
-            const el = e.target
-            const tooltip = el.querySelector('.menu-tooltip')
-
-            // 检查文本是否溢出
-            if (el.scrollWidth > el.offsetWidth) {
-              const rect = el.getBoundingClientRect()
-              tooltip.style.left = rect.right + 10 + 'px'
-              tooltip.style.top = rect.top + 'px'
-              tooltip.style.display = 'block'
-            }
-          }}
-          onMouseleave={(e) => {
-            const tooltip = e.querySelector('.menu-tooltip')
-            tooltip.style.display = 'none'
-          }}
-        >
-          {title}
-          <div class='menu-tooltip' style={tooltipStyle}>
-            {title}
-            <span class='tooltip-arrow'></span>
-          </div>
-        </span>
-      )
-
-      vNodes.push(titleSpan)
+      vNodes.push(<span slot='title' style={ellipsisStyle} title={ title }>{title}</span>)
     }
     return vNodes
   }
 }
 </script>
-
-<style>
-.el-menu-item,
-.el-submenu__title {
-  overflow: hidden !important;
-  white-space: nowrap !important;
-}
-
-.tooltip-arrow {
-  position: absolute;
-  left: -4px;
-  top: 50%;
-  margin-top: -4px;
-  border: 4px solid transparent;
-  border-right-color: rgba(0, 0, 0, 0.8);
-}
-</style>