The invention provides an unloading mechanism in an S-spring roll bending machine, belongs to the technical field of machinery and solves the problem that in the prior art, springs cannot be unloaded rapidly in batches. According to the unloading mechanism in the S-spring roll bending machine, the S-spring roll bending machine comprises a machine seat and a vertical plate vertically fixed to the machine support, one side of the vertical plate is fixedly provided with a conveying rail internally provided with a conveying channel, the vertical plate is furthermore fixedly provided with a second rotating shaft, the second rotating shaft is fixedly provided with a bending gear, the other side of the bending gear is provided with a guide rail, and the output end of the guide rail is provided with an outer forming ring and an inner forming ring arranged in the outer forming ring. The unloading mechanism comprises a buffering ring fixed to the vertical plate through a detachable structure, the outer side of the buffering ring is provided with a blocking structure, and the vertical plate is furthermore provided with a first push structure and a second push structure, wherein the first push structure can push an S spring obtained after roll-bending into the buffering ring from a gap between the outer forming ring and the inner forming ring, and the second push structure pushes the S spring obtained after roll-bending to the outer side from the interior of the buffering ring. The unloading mechanism has the advantages of being capable of performing unloading rapidly in batches.