The invention relates to an auxiliary and motive electric power pick-up structure for articulated and non-articulated land vehicles that pass close to a collector-shoe-type power supply member mounted on a stationary support (17) along the route of the vehicle and positioned at intervals along the length of the route in order to provide auxiliary and motive electric power to said vehicle by means of the shoe (16). The invention is characterized in that it comprises at least one conductor rail mounted on insulating supports (11) attached to the vehicle by suspension points (34) each including an elastic suspension means (30) and a pneumatic, hydraulic or other type active suspension means (33). In the case of articulated vehicles, the pick-up structure is divided into power supply segments (14) separated by a conducting link (19) at each articulated unit of the vehicle. The invention is suitable for manufacturers of electric public transport vehicles.