The invention relates to a multi-strand spiral spring shock absorber which comprises a shock absorber spring (3), a buffer spring (8), an intermediate cylinder tube (5), an outer cylinder (9), a piston tube (7), an end cover (1), a retainer ring (11) and a dust-proof cover (4), wherein the shock absorber spring is a multi-strand spiral spring, and the buffer spring is a unistrand spiral spring or a multi-strand spiral spring. The rigidity of the multi-strand spiral spring shock absorber provided by the invention changes dynamically along with the changes of the total weight and dead weight of a vehicle, thus the multi-strand spiral spring shock absorber has a better shock absorption effect than that of the unistrand spiral spring shock absorber; at the same time, because of the mechanism characteristics of the multi-strand spiral spring, the multi-strand spiral spring shock absorber has the advantages of longer service life and stability; and the multi-strand spiral spring shock absorber provided by the invention can be widely used for the shock absorption systems of vehicles, such as automobiles, motorcycles, electric motor cars, and the like.