VEHICLE BACK DOOR

Disclosed are a back door (1) for a vehicle and a vehicle. The back door (1) for a vehicle includes: a back door (1) trim panel and a rear shielding plate (101) which is provided with a first side edge, a second side edge, a third side edge and a fourth side edge that are sequentially connected ; the first side edge and the third side edge are each connected to the back door (1) trim panel in a non-rotatable manner; and the second side edge is used for being in lap joint with a front shielding plate (201). The rear shielding plate (101) moves along with the back door (1) when the back door (1) is opened ; and when the back door (1) is closed, the rear shielding plate (101) is in lap joint with the front shielding plate (201), to form a shielding plate of a luggage compartment.