A proportional pressure control valve includes a valve box (10) having a pump (P), user (A) and reservoir (T) connections. Control piston (18) is guided in a longitudinally displaceably inside the valve box (10) for optionally connecting the pump connection (P) to the user connection (A) and the user connection (A) to the reservoir connection (T). A fluid-carrying connection is established between the pump connection (P) and a pilot chamber (20) of a pilot valve (22). The pilot valve (22) is controlled by a magnet system, especially a proportional magnet system (28). The proportional pressure control valve, for the fluid-carrying connection to the pilot chamber (20), has a bore (27) extending axially inside the wall of the valve box (10) and from a radial bore (9) of the housing (10) forming the pump connection (P).