diff --git a/app/Services/UserCouponService.php b/app/Services/UserCouponService.php
index 43b9a7c..2901752 100644
--- a/app/Services/UserCouponService.php
+++ b/app/Services/UserCouponService.php
@@ -124,6 +124,9 @@ class UserCouponService extends BaseService
         // 优惠卷最高金额
         $coupon_high_price = 0;
 
+        // 优惠卷最大数量
+        $coupon_high_num = 0;
+
         // 是否存在互斥卷
         $is_mutex = 0;
 
@@ -201,28 +204,58 @@ class UserCouponService extends BaseService
                 continue;
             }
 
-            if (empty($selected_coupon)) {
+            if (empty($selected_coupons)) {
                 $selected_coupons[] = $coupon; // 选中的优惠卷数据
 
-                $coupon_high_price = $coupon['coupon_price'];
+                // 满减/无门槛-最高价格
+                if ($coupon['coupon_type'] == 1 || $coupon['coupon_type'] == 2){
+                    $coupon_high_price = $coupon['coupon_price'];
+                }
+
+                // 数量
+                if ($coupon['coupon_type'] == 3){
+                    $coupon_high_num = $coupon['min_usable_number'];
+                }
+
                 continue;
             }
 
             // 处理存在互斥卷情况
             if ($is_mutex == 1) {
-                // 选择金额最高的为选中
-                if ($coupon['coupon_price'] < $coupon_high_price){
-                    continue;
+                // 满减/无门槛-最高价格
+                if ($coupon['coupon_type'] == 1 || $coupon['coupon_type'] == 2){
+                    // 选择金额最高的为选中
+                    if ($coupon['coupon_price'] < $coupon_high_price){
+                        continue;
+                    }
+
+                    if ($coupon['coupon_price'] > $coupon_high_price) {
+                        $coupon_high_price = $coupon['coupon_price'];
+
+                        // 选中的优惠卷数据置空
+                        $selected_coupons = array();
+                        $selected_coupons[] = $coupon;
+
+                        continue;
+                    }
                 }
 
-                if ($coupon['coupon_price'] > $coupon_high_price) {
-                    $coupon_high_price = $coupon['coupon_price'];
+                // 数量
+                if ($coupon['coupon_type'] == 3){
+                    // 选择金额最高的为选中
+                    if ($coupon['min_usable_number'] < $coupon_high_num){
+                        continue;
+                    }
 
-                    // 选中的优惠卷数据置空
-                    $selected_coupons = array();
-                    $selected_coupons[] = $coupon;
+                    if ($coupon['min_usable_number'] > $coupon_high_num) {
+                        $coupon_high_num = $coupon['min_usable_number'];
 
-                    continue;
+                        // 选中的优惠卷数据置空
+                        $selected_coupons = array();
+                        $selected_coupons[] = $coupon;
+
+                        continue;
+                    }
                 }
             }