diff --git a/modules/troll/module.go b/modules/troll/module.go
index a4405a94d..f3dd7c8d1 100644
--- a/modules/troll/module.go
+++ b/modules/troll/module.go
@@ -93,8 +93,8 @@ func (this *Troll) TrollAI(session comm.IUserSession, troll *pb.DBTrollTrain, ai
 			if coefficient == nil {
 				return
 			}
-			if troll.Sell >= coefficient.Coefficient { // 可以出售
-				var preGold int32
+			if troll.Sell <= coefficient.Coefficient { // 可以出售
+				var preGold int32 // 成本价
 				for _, v := range goods {
 					sellPrice[v.Id] = v.Goodsprice * coefficient.Coefficient / 1000
 					preGold += troll.Price[v.Id] * troll.Items[v.Id]
@@ -112,8 +112,7 @@ func (this *Troll) TrollAI(session comm.IUserSession, troll *pb.DBTrollTrain, ai
 						break
 					}
 				}
-			}
-			if troll.Buy >= coefficient.Coefficient { // 可以购买
+			} else if troll.Buy >= coefficient.Coefficient { // 可以购买
 				for _, v := range goods {
 					sellPrice[v.Id] = v.Goodsprice * coefficient.Coefficient / 1000
 				}
@@ -180,7 +179,6 @@ func (this *Troll) BuyAllItem(uid string, troll *pb.DBTrollTrain, price map[int3
 				break
 			}
 		}
-
 		// 检查该位置的格子没有补满
 		full := (troll.Items[v.Id] + box[v.Id]) % maxgoods
 		if full != 0 {