Provided is a tumbler for beverage making including a drinking water tray including a lower tray which has an open top and a closed bottom to form a storage space for storing drinking water or a beverage therein, and an upper tray which is detachably coupled to the top of the lower tray to close the open top of the lower tray and has a drinking aperture formed therein to enable a user to drink the drinking water or beverage in the storage space; an additive tray which is detachably coupled to the bottom of the drinking water tray, and has an additive storage space for storing an additive formed therein; and a pumping unit which is mounted to penetrate through the drinking water tray and the additive tray so as to pump the additive and supply same to a drinking water storage space.