A fitness equipment spring counterweights balancer, comprising hand wheel, lead screw, upper and lower frame beams, upper and lower pulley blocks, spring guiding pillar, upper and lower spring seats, at least one spring, vortex track, big wheel, steel wire rope connecting the pulley block and the vortex track, steel wire rope which connects both the big wheel and fitness equipment. The springs are arranged between upper and lower spring seats. After the spring guiding pillar passes through the springs and the upper and lower spring seats, the both ends of the spring guiding pillar are connected with the upper and lower frame beams. One end of the steel wire rope connecting the pulley block and the vortex track is mounted on one side of the lower pulley block. One end of the steel wire rope connecting the big wheel and fitness equipment is mounted on the big wheel.