Sealing element for automobile door frame, automobile side door and automobile

The invention provides a sealing piece for an automobile door frame, an automobile side door and an automobile, the sealing piece for the automobile door frame comprises a clamping body used for being clamped and matched with a containing groove of the automobile door frame, and a sealing body fixedly connected with the clamping body and located at the lower end of the clamping body; the sealing body is provided with a supporting part fixedly connected with the clamping body and a first side sealing lip which is arranged on the supporting part and extends towards the outer side in a protruding mode, and the first side sealing lip is used for forming lateral single-face sealing with lifting glass. The step difference between the outer side wall of the lifting glass and the door frame upper part can be reduced, and even the side face of the lifting glass can be flush with or approximately flush with the door frame upper part, so that the wind noise performance of the whole vehicle is improved, and deep sea mute