Goods channel for vending machine

A vending machine includes a goods rack, a restricting piece, and a positioning piece mounted on the goods rack. The goods rack defines a goods accommodating space and an opening. The restricting piece is pivotally mounted on the goods rack to cover the opening. The restricting piece includes a clasp. The positioning piece defines a first engaging hole and a second engaging hole. The restricting piece can rotate on the goods rack between a first securing position and a second securing position. In the first securing position, the clasp engages in the first engaging hole, so that the restricting piece is set at a first height. In the second securing position, the clasp engages in the second engaging hole, so that the restricting piece is set at a second height.