A swash plate type variable displacement compressor, wherein, when a solenoid (42) of a flow control valve drive mechanism (32) is deenergized, a pilot valve (41) is closed so as to interrupt a working pressure to be introduced into a pressure chamber (35) of a flow control valve (31), thus closing a spool valve (33) so as to interrupt a low pressure side refrigerant path (25) to reduce the amount of refrigerant sucked to a refrigerant suction chamber (7) to zero.