diff --git a/pages/info/sceneProductInfo/index.js b/pages/info/sceneProductInfo/index.js
index 37af081..0efb176 100644
--- a/pages/info/sceneProductInfo/index.js
+++ b/pages/info/sceneProductInfo/index.js
@@ -327,11 +327,14 @@ Page({
       ctx.setFillStyle("#999999");
       ctx.setFontSize(28 * ratio); //字大小
       ctx.setTextAlign('left'); //是否居中显示，参考点画布中线
-      let subtitle = that.data.info.display_tags[0];
-      if (subtitle.length > 10) {
+      let subtitle = that.data.info.sub_title
+      if (subtitle && subtitle.length > 10) {
         subtitle = subtitle.substr(0, 10) + '...'
       }
-      ctx.fillText(subtitle, 25 * ratio, 540 * ratio);
+      if(subtitle){
+        ctx.fillText(subtitle, 25 * ratio, 540 * ratio);
+      }
+      
       // ctx.draw();
       // 划线价
       // ctx.setFillStyle("#999999");