An integrated pump device comprising: a motor; an oil pump rotated by a driving force of the motor and configured to discharge oil drawn from an oil pan; and a hydraulic actuator configured to switch between an advance state and a retard state by a hydraulic pressure created by the oil pump, wherein the motor, the oil pump and the hydraulic actuator are integrated to configure an integrated module, the hydraulic actuator includes: a housing having one or more vane chambers (621 to 624); and a vane rotor housed in the housing and including one or more vanes (641 to 644) respectively arranged in the vane chambers (621 to 624), an advance chamber (651 to 654) is provided in an area of the vane chamber in a circumferential direction of the vane, a retard chamber (661 to 664) is provided in an another area of the vane chamber in the circumferential direction, and the vane rotor is configured to rotate in one direction to enter the advance state when the hydraulic pressure is supplied to the advance chamber (651 to 654), and to rotate in an other direction to enter the retard state when the hydraulic pressure is supplied to the retard chamber (661 to 664), wherein the oil pump is configured to rotate in a forward direction and a reverse direction, and to have a suction port and a discharge port which are alternatively replaced in the forward direction and in the reverse direction, a forward suction port which functions as the discharge port while the oil pump rotates in the reverse direction is connected to the advance chamber (651 to 654), a reverse suction port which functions as the discharge port while the oil pump rotates in the forward direction is connected to the retard chamber (661 to 664), first and second suction check valves (57, 58) are configured to prevent the oil flowing from the oil pump to the oil pan, the first suction check valve is provided in a forward suction passage connected to the forward suction port, the second suction check valve is provided in a reverse suction passage connected to the reverse suction port, and the oil pump is switched between the forward direction and the reverse direction, to switch a flow of the oil from the oil pump to the advance chamber (651 to 654) or the retard chamber (661 to 664). a motor; an oil pump rotated by a driving force of the motor and configured to discharge oil drawn from an oil pan; and a hydraulic actuator configured to switch between an advance state and a retard state by a hydraulic pressure created by the oil pump, wherein the motor, the oil pump and the hydraulic actuator are integrated to configure an integrated module, the hydraulic actuator includes: a housing having one or more vane chambers (621 to 624); and a vane rotor housed in the housing and including one or more vanes (641 to 644) respectively arranged in the vane chambers (621 to 624), an advance chamber (651 to 654) is provided in an area of the vane chamber in a circumferential direction of the vane, a retard chamber (661 to 664) is provided in an another area of the vane chamber in the circumferential direction, and the vane rotor is configured to rotate in one direction to enter the advance state when the hydraulic pressure is supplied to the advance chamber (651 to 654), and to rotate in an other direction to enter the retard state when the hydraulic pressure is supplied to the retard chamber (661 to 664), wherein to rotate in one direction to enter the advance state when the hydraulic pressure is supplied to the advance chamber (651 to 654), and to rotate in an other direction to enter the retard state when the hydraulic pressure is supplied to the retard chamber (661 to 664), wherein the oil pump is configured to rotate in a forward direction and a reverse direction, and to have a suction port and a discharge port which are alternatively replaced in the forward direction and in the reverse direction, a forward suction port which functions as the discharge port while the oil pump rotates in the reverse direction is connected to the advance chamber (651 to 654), a reverse suction port which functions as the discharge port while the oil pump rotates in the forward direction is connected to the retard chamber (661 to 664), first and second suction check valves (57, 58) are configured to prevent the oil flowing from the oil pump to the oil pan, the first suction check valve is provided in a forward suction passage connected to the forward suction port, the second suction check valve is provided in a reverse suction passage connected to the reverse suction port, and the oil pump is switched between the forward direction and the reverse direction, to switch a flow of the oil from the oil pump to the advance chamber (651 to 654) or the retard chamber (661 to 664).