Foldable cushion

The utility model discloses a foldable cushion. The foldable cushion comprises a lock, a base and a plurality of seat plates, the seat plates are located on the upper side of the base and can rotate relative to the base to be unfolded or folded, a concave-convex structure is formed on the upper end face of each seat plate after the seat plates are folded, and the lock is connected with the seat plates and used for limiting the relative positions of the seat plates. And in the unfolded state, the plurality of seat plates are spliced to form a larger supporting surface, so that a user can sit down. And in the folded state, the plurality of seat plates are folded, so that the seat plates are not suitable for users to sit down and can be locked through the lockset, the theft phenomenon of thevehicle is reduced, and the situation that idle people on the roadside sit down to play the vehicle is avoided. After the seat plate is folded, a concave-convex structure is formed on the upper end surface of the seat plate,