A press machine comprising: a crown ; a slide movable in a vertical direction; a hydraulic cylinder (30, 30-L, 30-R) configured to drive the slide and fixed to the crown , a piston rod of the hydraulic cylinder being coupled to the slide ; a plurality of hydraulic pumps/motors (P/M1 to P/M5) configured to rotate in forward and reverse directions so as to supply a working fluid to the hydraulic cylinder (30, 30-L, 30-R) or suck the working fluid from the hydraulic cylinder (30, 30-L, 30-R), the plurality of hydraulic pumps/motors (P/M1 to P/M5) each including a first port connected to a first pressurizing chamber (30A, 30A-L, 30A-R) of the hydraulic cylinder (30, 30-L, 30-R) that drives the slide in a forward direction; a plurality of servomotors (SM1 to SM5) axially connected to rotating shafts of the plurality of hydraulic pumps/motors (P/M1 to P/M5) respectively; a first pressure source having a constant pressure equal to or higher than 0.3 MPa and connected to each of second ports of the plurality of hydraulic pumps/motors (P/M1 to P/M5); a second pressure source having a constant pressure equal to or higher than 1 MPa and connected to a second pressurizing chamber (30B, 30B-L, 30B-R) of the hydraulic cylinder (30, 30-L, 30-R) that drives the slide in a reverse direction; a slide position commander configured to output a slide position command signal for the slide ; a slide position detector (70, 70-L, 70-R) configured to detect a position of the slide and output a slide position signal; and a slide position controller configured to control the plurality of servomotors (SM1 to SM5) so that the position of the slide matches a position corresponding to the slide position command signal based on the slide position command signal and the slide position signal. a crown ; a slide movable in a vertical direction; a hydraulic cylinder (30, 30-L, 30-R) configured to drive the slide and fixed to the crown , a piston rod of the hydraulic cylinder being coupled to the slide ; a plurality of hydraulic pumps/motors (P/M1 to P/M5) configured to rotate in forward and reverse directions so as to supply a working fluid to the hydraulic cylinder (30, 30-L, 30-R) or suck the working fluid from the hydraulic cylinder (30, 30-L, 30-R), the plurality of hydraulic pumps/motors (P/M1 to P/M5) each including a first port connected to a first pressurizing chamber (30A, 30A-L, 30A-R) of the hydraulic cylinder (30, 30-L, 30-R) that drives the slide in a forward direction; a plurality of servomotors (SM1 to SM5) axially connected to rotating shafts of the plurality of hydraulic pumps/motors (P/M1 to P/M5) respectively; a first pressure source having a constant pressure equal to or higher than 0.3 MPa and connected to each of second ports of the plurality of hydraulic pumps/motors (P/M1 to P/M5); a second pressure source having a constant pressure equal to or higher than 1 MPa and connected to a second pressurizing chamber (30B, 30B-L, 30B-R) of the hydraulic cylinder (30, 30-L, 30-R) that drives the slide in a reverse direction; a slide position commander configured to output a slide position command signal for the slide ; a slide position detector (70, 70-L, 70-R) configured to detect a position of the slide and output a slide position signal; and a slide position controller configured to control the plurality of servomotors (SM1 to SM5) so that the position of the slide matches a position corresponding to the slide position command signal based on the slide position command signal and the slide position signal. <EOS>