A capacity control valve comprising: first passages ; a first valve chamber formed in the middle of the first passages ; a valving element integrally having a first valve portion for opening and closing the first passages in the first valve chamber ; second passages sharing a common passage with the first passages ; a second valve chamber formed in the middle of the second passages ; a third valve chamber formed in the middle of the common passage ; a second passage opening/closing means provided in the middle of the common passage; 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 second passage opening/closing means has a third valve portion for opening and closing the second passages by receiving the pressure of the third valve chamber , and a second valve portion for opening and closing the second passages by receiving the electromagnetic driving force in the second valve chamber , and being 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 flowing a liquefied refrigerant in a direction from the third valve chamber toward the second valve chamber in the second passages . first passages ; a first valve chamber formed in the middle of the first passages ; a valving element integrally having a first valve portion for opening and closing the first passages in the first valve chamber ; second passages sharing a common passage with the first passages ; a second valve chamber formed in the middle of the second passages ; a third valve chamber formed in the middle of the common passage ; a second passage opening/closing means provided in the middle of the common passage; 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 second passage opening/closing means has a third valve portion for opening and closing the second passages by receiving the pressure of the third valve chamber , and a second valve portion for opening and closing the second passages by receiving the electromagnetic driving force in the second valve chamber , and being 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 flowing a liquefied refrigerant in a direction from the third valve chamber toward the second valve chamber in the second passages . <EOS>