A cup structure is disclosed. The cup structure having an external tube, a sealing cap, a suction tube and a cup body, characterized in that the sealing cap is a dual-layered body having a bottom seat for holding a rotating wheel and a through hole at the external edge thereof, corresponding to the upper layer seat of the seat, a connection tube having a through hole is provided so that the suction tube can be connected to the connection tube, the upper layer seat and the bottom layer seat are connected, and the face thereof is capped with a capping plate, and the core of a transmission mechanism within the upper layer seat is extended from the capping plate so as to connect to one or more than one decorating object, the upper layer seat is provided with a connection tube and an air tube corresponding to the top which is pivotally mounted with a triggering plate, a protruded tube is provided at one side of the triggering plate which can pass through the top capping plate and then is connected to the external tube.