A beverage container holding device includes a storage member having a storage space whose top is open and which is configured to receive a beverage container, and a movable floor mounted to the storage member such that the movable floor can move up and down and is configured to support to bottom of the beverage container. The storage member includes support members that advance into the storage space to support the beverage container, and support biasing members for causing the support members to advance into the storage space. The movable floor has support retracting members for causing the support members to move backward such that the support members retract from the storage space.