A linear compressor comprising: a piston that reciprocates on a spring central axis extending in an axial direction; and a spring that axially elastically supports the piston, wherein the spring (200, 300, 400, 500) includes a plurality of spring strands (210, 220, 230, 310, 320, 330, 410, 420, 430, 510, 520, 530), the spring strands (210, 220, 230, 310, 320, 330, 410, 420, 430, 510, 520, 530) each include: a spring body (202, 302, 402, 502) extends in a spiral around the spring central axis; a front spring link (204, 304, 404, 504) that forms an end of the spring body (202, 302, 402, 502) by extending from a side of the spring body (202, 302, 402, 502); and a rear spring link (206, 306, 406, 506) that forms the other end of the spring body (202, 302, 402, 502) by extending from the other side of the spring body (202, 302, 402, 502), a plurality of front spring links (214, 314, 414, 514) of the spring strands (210, 220, 230, 310, 320, 330, 410, 420, 430, 510, 520, 530) are arranged axially in the same plane, and a plurality of rear spring links (216, 316, 416, 516) of the spring strands (210, 220, 230, 310, 320, 330, 410, 420, 430, 510, 520, 530) are arranged axially in the same plane, wherein the spring (200, 300, 400, 500) has a shape of a coil spring, wherein the spring body (202, 302, 402, 502) axially extends while forming a virtual circle having a spring diameter in a radial direction, and the spring diameter is axially the same or axially changed. a piston that reciprocates on a spring central axis extending in an axial direction; and a spring that axially elastically supports the piston, wherein the spring (200, 300, 400, 500) includes a plurality of spring strands (210, 220, 230, 310, 320, 330, 410, 420, 430, 510, 520, 530), the spring strands (210, 220, 230, 310, 320, 330, 410, 420, 430, 510, 520, 530) each include: a spring body (202, 302, 402, 502) extends in a spiral around the spring central axis; a front spring link (204, 304, 404, 504) that forms an end of the spring body (202, 302, 402, 502) by extending from a side of the spring body (202, 302, 402, 502); and a rear spring link (206, 306, 406, 506) that forms the other end of the spring body (202, 302, 402, 502) by extending from the other side of the spring body (202, 302, 402, 502), a plurality of front spring links (214, 314, 414, 514) of the spring strands (210, 220, 230, 310, 320, 330, 410, 420, 430, 510, 520, 530) are arranged axially in the same plane, and a plurality of rear spring links (216, 316, 416, 516) of the spring strands (210, 220, 230, 310, 320, 330, 410, 420, 430, 510, 520, 530) are arranged axially in the same plane, wherein the spring (200, 300, 400, 500) has a shape of a coil spring, wherein the spring body (202, 302, 402, 502) axially extends while forming a virtual circle having a spring diameter in a radial direction, and the spring diameter is axially the same or axially changed. a spring body (202, 302, 402, 502) extends in a spiral around the spring central axis; a front spring link (204, 304, 404, 504) that forms an end of the spring body (202, 302, 402, 502) by extending from a side of the spring body (202, 302, 402, 502); and a rear spring link (206, 306, 406, 506) that forms the other end of the spring body (202, 302, 402, 502) by extending from the other side of the spring body (202, 302, 402, 502), a plurality of front spring links (214, 314, 414, 514) of the spring strands (210, 220, 230, 310, 320, 330, 410, 420, 430, 510, 520, 530) are arranged axially in the same plane, and a plurality of rear spring links (216, 316, 416, 516) of the spring strands (210, 220, 230, 310, 320, 330, 410, 420, 430, 510, 520, 530) are arranged axially in the same plane, wherein the spring (200, 300, 400, 500) has a shape of a coil spring, wherein the spring body (202, 302, 402, 502) axially extends while forming a virtual circle having a spring diameter in a radial direction, and the spring diameter is axially the same or axially changed.