A capacity control valve comprising: a discharge-side passage (31, 32) for communicating a discharge chamber for discharging a fluid and a control chamber for controlling an amount of fluid discharged; a first valve chamber formed partway in said discharge-side passage (31, 32); a suction-side passage for communicating said control chamber and a suction chamber for taking in the fluid; a second valve chamber formed partway in said suction-side passage; a valve body integrally having a first valve part for opening and closing said discharge-side passage (31, 32) in said first valve chamber and a second valve part for opening and closing said suction-side passage in said second valve chamber, the first valve part and second valve part alternately opening and closing with respect to each other by reciprocating; a third valve chamber formed partway in said suction-side passage closer to said control chamber than said second valve chamber; a pressure-sensitive body for exerting an urging force in the direction of opening said first valve part by extension of the pressure-sensitive body and contracting in conjunction with an increase in the surrounding pressure, the pressure-sensitive body being disposed in said third valve chamber; an adapter provided to a free end of said pressure-sensitive body in the extension and contraction direction thereof and having an annular seat surface; a third valve part having an annular engaging surface for moving integrally with said valve body in said third valve chamber and opening and closing said suction-side passage by engaging and disengaging with the seat surface of said adapter; and a solenoid for exerting an electromagnetic driving force on the valve body in the direction of closing of the first valve part, characterized in that urging means being provided for acting in the valve-opening direction between said adapter and the third valve part. a discharge-side passage (31, 32) for communicating a discharge chamber for discharging a fluid and a control chamber for controlling an amount of fluid discharged; a first valve chamber formed partway in said discharge-side passage (31, 32); a suction-side passage for communicating said control chamber and a suction chamber for taking in the fluid; a second valve chamber formed partway in said suction-side passage; a valve body integrally having a first valve part for opening and closing said discharge-side passage (31, 32) in said first valve chamber and a second valve part for opening and closing said suction-side passage in said second valve chamber, the first valve part and second valve part alternately opening and closing with respect to each other by reciprocating; a third valve chamber formed partway in said suction-side passage closer to said control chamber than said second valve chamber; a pressure-sensitive body for exerting an urging force in the direction of opening said first valve part by extension of the pressure-sensitive body and contracting in conjunction with an increase in the surrounding pressure, the pressure-sensitive body being disposed in said third valve chamber; an adapter provided to a free end of said pressure-sensitive body in the extension and contraction direction thereof and having an annular seat surface; a third valve part having an annular engaging surface for moving integrally with said valve body in said third valve chamber and opening and closing said suction-side passage by engaging and disengaging with the seat surface of said adapter; and a solenoid for exerting an electromagnetic driving force on the valve body in the direction of closing of the first valve part, characterized in that urging means being provided for acting in the valve-opening direction between said adapter and the third valve part.