The return machine conceived by the students is equipped with a water tank, which soaks the lid and body of the cup when they are put in and then sent to the cleaning station for cleaning and sterilization before being sent back to the store. At present, the "Environmental Cup Automatic Leasing System" has successfully developed the APP leasing function, and plans to cooperate with the beverage store at Chung Cheng University to test consumer reactions. It is also expected to continue to complete the APP on the shelves, cash flow connection, and production entity return machines in the future, realizing the team's dream.