In an exemplary embodiment, a capacity control valve includes: a valve main body 2 having a first valve chamber 7 through which a fluid at control pressure passes and which has a first valve seat surface 31A, and an interior space 4 through which a fluid at suction pressure passes; and a valve body 21 having an intermediate communication passage 26 for communicating the first valve chamber 7 and the interior space 4, and a first valve part 21C for opening and closing the intermediate communication passage 26 adjacent to the first valve seat surface 31A, wherein an opening area of the first valve part 21C is smaller than that of the intermediate communication passage 26. The capacity control valve is capable of simultaneously achieving reduction of a start-up time of the variable capacity compressor and improvement of responsiveness of capacity control at the time of control.