diff --git a/Polyline/index.tsx b/Polyline/index.tsx
index f6fe1f3f58bfebcec9292ae9af8a15c1112ed0c5..b969d2055f5a68c15aedd84e058e12e669be8916 100644
--- a/Polyline/index.tsx
+++ b/Polyline/index.tsx
@@ -26,7 +26,7 @@ const Polyline: React.FC<PolylineProps> = (props) => {
       return {
         x: item[0],
         y: item[1],
-        z: 0,
+        z: 10,
       };
     });
     let curMaterial = lineColor;