The invention discloses a multi-spiral ramp type stereoscopic parking garage, and belongs to the technical fields of automotive parking garages. The multi-spiral ramp type stereoscopic parking garage is characterized in that the parking garage is designed by applying the basic features of a multiple thread, namely an equal pitch and the same lift. A double-spiral ramp type stereoscopic parking garbage is taken for example; phase positions at an interval of 180 degrees on an axial cross section are designed; starting points of two independent spiral surfaces A and B are subjected to an equal lead and an equal floor height and are subjected to equidirectional hovering rise along a ring form in a closed area; a reversing road is designed at a connecting line of one pair of equal-height points selected on each floor of the two spiral surfaces, namely, an up one-way road A can lead to a down one-way road B through the reversing road on each floor; and the purposes of searching a parking space for parking and coming in and out of the garage are completed. Ground and underground parts which are relatively independent exist. The multi-spiral ramp type stereoscopic parking garage has the beneficial effects that the internal operation capacity of the parking garage is improved manyfold in structure principle compared with those of the schemes of various self-propelled parking garages applying designs most approaching the prior art; automobiles run smoothly and sequentially; the economical efficiency is good; and the garage capacity rate is high.