A swash plate type compressor, comprising a cylinder block (1) having a plurality of cylinder bores (6) formed therein, a shaft (5) supported rotatably at the center part of the cylinder block (1), a swash plate (10) rotated according to the rotation of the shaft (5), a crank chamber (8) having the swash plate (10) stored therein, and pistons (7) connected to the swash plate (10) through a pair of shoes (60, 61) and sliding inside the cylinder bores (6) according to the rotation of the swash plate (10), wherein the piston (7) further comprising a cylindrical part (7a) sliding inside the cylinder bore (6) and a bridge part (7b) rollingably supporting the pair of shoes (60, 61), the bridge (7b) is projected from the cylindrical part (7a) in the outer radial direction of the cylinder block (1) by a connection part (7c) extending from a bottom part (7e) of the cylindrical part (7a) in the outer radial direction, and a projection part (11) projecting to the crank chamber (8) side is formed at the center part of a front side end face (1b) of the cylinder block (1) within the area where the projection part is not interfered with the connection part (7c).