A capacity control valve, comprising: discharge-side passages (31, 32) communicating a discharge chamber that discharges fluid and a control chamber that controls a discharge rate of fluid; a first valve chamber formed along the discharge-side passages (31, 32); intake-side passages communicating an intake chamber that takes in fluid and the control chamber; a second valve chamber formed along the intake-side passages; a valve element that integrally has a first valve part that opens/closes the discharge-side passages (31, 32) in the first valve chamber and a second valve part that opens/closes the intake-side passages in the second valve chamber, where the two valve parts (41, 42) open/close in opposite directions due to reciprocating motion; a third valve chamber formed along the intake-side passages at a position closer to the control chamber than to the second valve chamber; a pressure-sensitive body positioned in the third valve chamber to apply, by extending, a bias force in a direction of opening the first valve part, and also to contract as a surrounding pressure increases; an adapter provided on a free end of the pressure-sensitive body in extending/contracting directions and having a circular seating surface; a third valve part that moves integrally with the valve element in the third valve chamber and has a circular engagement surface that opens/closes the intake-side passages by engaging with and separating from the seating surface of the adapter; and a solenoid that applies an electromagnetic drive force to the valve element in a direction of closing the first valve part; a partition adjustment member provided on a fixed end of the pressure-sensitive body; the adapter has a hollow cylindrical part whose tip engages with the third valve part and whose cross-section has an approximate C shape, and the circular seating surface is provided at the tip of the hollow cylindrical part, characterized in that the pressure-sensitive body is formed by a formed bellows made of material having greater yield stress than phosphor bronze, so that the formed bellows is arranged as the sole member interposed between and connecting the adapter and the partition adjustment member. discharge-side passages (31, 32) communicating a discharge chamber that discharges fluid and a control chamber that controls a discharge rate of fluid; a first valve chamber formed along the discharge-side passages (31, 32); intake-side passages communicating an intake chamber that takes in fluid and the control chamber; a second valve chamber formed along the intake-side passages; a valve element that integrally has a first valve part that opens/closes the discharge-side passages (31, 32) in the first valve chamber and a second valve part that opens/closes the intake-side passages in the second valve chamber, where the two valve parts (41, 42) open/close in opposite directions due to reciprocating motion; a third valve chamber formed along the intake-side passages at a position closer to the control chamber than to the second valve chamber; a pressure-sensitive body positioned in the third valve chamber to apply, by extending, a bias force in a direction of opening the first valve part, and also to contract as a surrounding pressure increases; an adapter provided on a free end of the pressure-sensitive body in extending/contracting directions and having a circular seating surface; a third valve part that moves integrally with the valve element in the third valve chamber and has a circular engagement surface that opens/closes the intake-side passages by engaging with and separating from the seating surface of the adapter; and a solenoid that applies an electromagnetic drive force to the valve element in a direction of closing the first valve part; a partition adjustment member provided on a fixed end of the pressure-sensitive body; the adapter has a hollow cylindrical part whose tip engages with the third valve part and whose cross-section has an approximate C shape, and the circular seating surface is provided at the tip of the hollow cylindrical part, characterized in that the pressure-sensitive body is formed by a formed bellows made of material having greater yield stress than phosphor bronze, so that the formed bellows is arranged as the sole member interposed between and connecting the adapter and the partition adjustment member.