A collapsible storage and transport container made of plastic, has a bottom, lengthwise and crosswise side walls that rise vertically from it, opposite one another in pairs, in the operating position, and a top end frame connected with the side walls in articulated manner, in the region of their top edge. The lengthwise side walls are mounted on the bottom and on the end frame, in articulated manner, about longitudinal axes that run parallel to one another and to the plane of the bottom, and can be folded about a center longitudinal axis. The crosswise side walls are structured in one piece, in each instance, and are arranged to pivot about a crosswise axis that is parallel to the plane of the bottom, after a lock has been released, from their upright position into a horizontal collapsed position. The crosswise side walls are mounted to pivot in the region of the bottom, and are provided, at their free top edge, with devices to secure them in place with a positive lock, on the top end frame.