In this diploma thesis we present the positioning control of backgauge of hydraulic press brake. The aim of the diploma thesis was to ensure that we can successfully control the hydraulic press backgauge positioning with the controller box. First, the necessary control equipment is presented. Part of this is the position controller P8721 by Elgo Electronic. For controlling the DC servo motor we used the servo drive MiniMaestro 60x7/14 by Control Techniques. Further on, the thesis presents the making of the electrical plan. The making of the relay protective circuit which is needed for speed and direction control of the servo motor. Installation plate in the main junction box contains: terminal block, transformer, fuses, servo drive, relays, relay protective circuit, full wave bridge rectifier, condenser/capacitor, and power supply. Controller box contains position controller, toggle switch for flipping between manual and automatic mode and buttons FORWARD, BACKWARDS, START, STOP.