A variable capacity compressor comprising a capacity control valve, a discharge chamber that discharges refrigerant, a suction chamber that sucks the refrigerant and a control chamber that controls a discharge rate of the refrigerant, the capacity control valve including: discharge-side passages (31, 32, 33) for providing communication between the discharge chamber and the control chamber; a first valve chamber formed in the middle of the discharge-side passages; a valving element integrally having a first valve portion for opening and closing the discharge-side passages in the first valve chamber; suction-side passages (33, 34) for providing communication between the suction chamber and the control chamber; a second valve chamber and a third valve chamber formed in the middle of the suction-side passages; a suction-side passage opening/closing means provided in the middle of the suction-side passages; and a solenoid for exerting an electromagnetic driving force for controlling the valving element, the solenoid including a center post constituted by an iron core, a driving rod capable of reciprocating inside the center post, and a plunger constituted by an iron core and fixed to the driving rod, wherein the suction-side passage opening/closing means has a third valve portion for opening and closing the suction-side passages by receiving the pressure of the control chamber in the third valve chamber, and a second valve portion for opening and closing the suction-side passages by receiving the electromagnetic driving force in the second valve chamber; characterized in that the center post is provided movably in the axial direction in such a manner that one end face thereof is opposed to the second valve portion, and the center post is moved to the direction away from the second valve portion by the electromagnetic driving force to increase the distance between the second valve portion and the center post when discharging the liquefied refrigerant from the control chamber to the suction chamber at start-up of the variable capacity compressor. discharge-side passages (31, 32, 33) for providing communication between the discharge chamber and the control chamber; a first valve chamber formed in the middle of the discharge-side passages; a valving element integrally having a first valve portion for opening and closing the discharge-side passages in the first valve chamber; suction-side passages (33, 34) for providing communication between the suction chamber and the control chamber; a second valve chamber and a third valve chamber formed in the middle of the suction-side passages; a suction-side passage opening/closing means provided in the middle of the suction-side passages; and a solenoid for exerting an electromagnetic driving force for controlling the valving element, the solenoid including a center post constituted by an iron core, a driving rod capable of reciprocating inside the center post, and a plunger constituted by an iron core and fixed to the driving rod, wherein the suction-side passage opening/closing means has a third valve portion for opening and closing the suction-side passages by receiving the pressure of the control chamber in the third valve chamber, and a second valve portion for opening and closing the suction-side passages by receiving the electromagnetic driving force in the second valve chamber; characterized in that the center post is provided movably in the axial direction in such a manner that one end face thereof is opposed to the second valve portion, and the center post is moved to the direction away from the second valve portion by the electromagnetic driving force to increase the distance between the second valve portion and the center post when discharging the liquefied refrigerant from the control chamber to the suction chamber at start-up of the variable capacity compressor.