diff --git a/pages/cart/cart2_pt/cart2_pt.js b/pages/cart/cart2_pt/cart2_pt.js
index a857563..56341a8 100644
--- a/pages/cart/cart2_pt/cart2_pt.js
+++ b/pages/cart/cart2_pt/cart2_pt.js
@@ -153,6 +153,7 @@ Page({
 							if (su.data.code == 0) {
 								var yuer = parseFloat(th.data.userinfo.user_money -
 									(th.data.userinfo.frozen_money>0?th.data.userinfo.frozen_money:0) - su.data.data.summoney).toFixed(2);
+								if(yuer<0) yuer=0;
 								th.setData({ txmon: su.data.data.summoney, yuer: yuer });
 							}
 						}
@@ -451,13 +452,13 @@ Page({
                   var txt = "formData.user_money";
                   var txt2 = "formData.order_amount";
                   //--------------如果使用余额---------------------
-                  if (th.data.bn_use_money == 1) {
+                  if (th.data.bn_use_money == 1 && th.data.yuer>0) {
                       if ( parseFloat(th.data.yuer) > total_m) {
                           th.setData({ [txt]: total_m, [txt2]:0 })
                       }else{
                           order_m = parseFloat(order_m) - parseFloat(th.data.yuer);
                           order_m = order_m.toFixed(2);
-                          th.setData({ [txt]: th.data.userinfo.yuer, [txt2]: order_m })
+                          th.setData({ [txt]: th.data.yuer, [txt2]: order_m })
                       }
                   }else{
                     th.setData({ [txt]: 0, [txt2]: order_m })
diff --git a/pages/cart/cart2_pt/cart2_pt.wxml b/pages/cart/cart2_pt/cart2_pt.wxml
index 7935b30..bfb15a0 100644
--- a/pages/cart/cart2_pt/cart2_pt.wxml
+++ b/pages/cart/cart2_pt/cart2_pt.wxml
@@ -125,7 +125,7 @@
 
          <view class="information bdr14">
 						 <!-----使用余额------>
-						 <view class="set-mes" wx:if="{{userinfo.user_money>0}}">
+						 <view class="set-mes" wx:if="{{userinfo.user_money>0 && yuer>0}}">
 							 <view class="use-item" bindtap='set_bn_useyuer' style="padding-left:0;padding-right:0;">
 								<icon  color="{{bn_use_money?'red':'gray'}}" size="16" type="success"></icon>
 								<view class="yu_er">使用余额 :￥{{yuer}} </view>