A variable displacement swash plate type compressor comprising: a housing in which a suction chamber (33; 127a), a discharge chamber (35; 129a), a swash plate chamber (23; 330), and a cylinder bore are formed; a drive shaft rotatably supported by the housing; a swash plate rotatable in the swash plate chamber (25; 330) according to the rotation of the drive shaft; a link mechanism provided between the drive shaft and the swash plate and configured to allow a change in an inclination angle of the swash plate with respect to a direction orthogonal to an axis of the drive shaft; a piston accommodated in the cylinder bore (21 a) to be reciprocatingly movable; a conversion mechanism configured to reciprocatingly move, according to the rotation of the swash plate, the piston in the cylinder bore at a stroke corresponding to the inclination angle; an actuator capable of changing the inclination angle; and a control mechanism (15; 150) configured to control the actuator, wherein the swash plate chamber (25; 330) communicates with the suction chamber (33; 127a) characterised in that the actuator includes: a defining body (51c; 160b) provided on the drive shaft in the swash plate chamber (25; 330) a movable body (13a; 160a) movable in axial direction of the drive shaft in the swash plate chamber (25; 330); and a control pressure chamber (13b; 160c) defined by the defining body (51c; 160b) and the movable body (13a; 160a) and configured to move the movable body (13a; 160a) by an internal pressure in the control pressure chamber (13b; 160c); and in that the control mechanism (15; 150) includes: a supply passage (15b, 3a, 3b; 150b, 30a, 30b) communicating with the discharge chamber (35; 129a) and the control pressure chamber (13b; 160c), and introducing a refrigerant in the discharge chamber (35; 129a) into the control pressure chambers (13b; 160c); and a bleed passage communicating with the control pressure chamber and the swash plate chamber (25; 330), and discharging the refrigerant in the control pressure chamber (13b 160c) to the swash plate chamber (25; 330), wherein the bleed passage includes a communication path (57; 61; 63; 65; 75; 77) formed in at least one of the movable body (13a, 160a) and the defining body (51c, 160b), thereby discharging lubricant from the control pressure chamber (13b; 160c) to the swash plate chamber (25; 330) together with the refrigerant. a housing in which a suction chamber (33; 127a), a discharge chamber (35; 129a), a swash plate chamber (23; 330), and a cylinder bore are formed; a drive shaft rotatably supported by the housing; a swash plate rotatable in the swash plate chamber (25; 330) according to the rotation of the drive shaft; a link mechanism provided between the drive shaft and the swash plate and configured to allow a change in an inclination angle of the swash plate with respect to a direction orthogonal to an axis of the drive shaft; a piston accommodated in the cylinder bore (21 a) to be reciprocatingly movable; a conversion mechanism configured to reciprocatingly move, according to the rotation of the swash plate, the piston in the cylinder bore at a stroke corresponding to the inclination angle; an actuator capable of changing the inclination angle; and a control mechanism (15; 150) configured to control the actuator, wherein a defining body (51c; 160b) provided on the drive shaft in the swash plate chamber (25; 330) a movable body (13a; 160a) movable in axial direction of the drive shaft in the swash plate chamber (25; 330); and a control pressure chamber (13b; 160c) defined by the defining body (51c; 160b) and the movable body (13a; 160a) and configured to move the movable body (13a; 160a) by an internal pressure in the control pressure chamber (13b; 160c); and in that a supply passage (15b, 3a, 3b; 150b, 30a, 30b) communicating with the discharge chamber (35; 129a) and the control pressure chamber (13b; 160c), and introducing a refrigerant in the discharge chamber (35; 129a) into the control pressure chambers (13b; 160c); and a bleed passage communicating with the control pressure chamber and the swash plate chamber (25; 330), and discharging the refrigerant in the control pressure chamber (13b 160c) to the swash plate chamber (25; 330), wherein the bleed passage includes a communication path (57; 61; 63; 65; 75; 77) formed in at least one of the movable body (13a, 160a) and the defining body (51c, 160b), thereby discharging lubricant from the control pressure chamber (13b; 160c) to the swash plate chamber (25; 330) together with the refrigerant.