A capacity control valve (1; 50) for controlling a flow rate or pressure of a variable capacity compressor according to a valve opening degree of a valve section, comprising: a valve main body having a first valve chamber communicating with a first communication passage through which a fluid at a first pressure passes, a third valve chamber communicating with a third communication passage through which a fluid at a third pressure passes, and a second valve chamber communicating with a second communication passage which is arranged between the first communication passage and the third communication passage and through which a fluid at a second pressure passes and having a valve hole communicating with the third valve chamber and a second valve seat arranged in the valve hole; a pressure-sensitive body (24; 74) which is arranged in the third valve chamber and which extends and contracts in response to the pressure of the third valve chamber; a valve body having an intermediate communication passage (26; 76) for communicating the first valve chamber and the third valve chamber, a first valve part (21a; 71a) arranged in the first valve chamber, a second valve part (21b; 71b) for opening and closing the valve hole by separating from and making contact with the second valve seat, and a valve body end part (23; 71j) arranged in the third valve chamber; a third communication hole which is arranged in the third valve chamber and which communicates with the third valve chamber and the intermediate communication passage (26; 76); a solenoid having an electromagnetic coil part, a first plunger, a stator core, and a rod for connecting the valve body and the first plunger; and a second plunger between the stator core and the valve body, characterized in that the second plunger includes an auxiliary valve seat for opening and closing communication between the first valve chamber and the intermediate communication passage (26; 76) by separating from and making contact with the first valve part (21a; 71a) and an auxiliary communication hole for communicating the first valve chamber and the intermediate communication passage (26; 76) in parallel to the first valve part (21a; 71a). a valve main body having a first valve chamber communicating with a first communication passage through which a fluid at a first pressure passes, a third valve chamber communicating with a third communication passage through which a fluid at a third pressure passes, and a second valve chamber communicating with a second communication passage which is arranged between the first communication passage and the third communication passage and through which a fluid at a second pressure passes and having a valve hole communicating with the third valve chamber and a second valve seat arranged in the valve hole; a pressure-sensitive body (24; 74) which is arranged in the third valve chamber and which extends and contracts in response to the pressure of the third valve chamber; a valve body having an intermediate communication passage (26; 76) for communicating the first valve chamber and the third valve chamber, a first valve part (21a; 71a) arranged in the first valve chamber, a second valve part (21b; 71b) for opening and closing the valve hole by separating from and making contact with the second valve seat, and a valve body end part (23; 71j) arranged in the third valve chamber; a third communication hole which is arranged in the third valve chamber and which communicates with the third valve chamber and the intermediate communication passage (26; 76); a solenoid having an electromagnetic coil part, a first plunger, a stator core, and a rod for connecting the valve body and the first plunger; and a second plunger between the stator core and the valve body, characterized in that the second plunger includes an auxiliary valve seat for opening and closing communication between the first valve chamber and the intermediate communication passage (26; 76) by separating from and making contact with the first valve part (21a; 71a) and an auxiliary communication hole for communicating the first valve chamber and the intermediate communication passage (26; 76) in parallel to the first valve part (21a; 71a).