The invention belongs to the technical field of stereo parking garage equipment and relates to a building ambulatory type stereo parking garage. A building ambulatory is formed on the lower portion ofa first parking layer; a translation car is arranged on the outer side of each parking layer; a lifting elevator penetrates through all the parking layers and the building ambulatory on the bottom layer; accesses of the translation cars communicate with parking places on the outer sides of the parking layers and an access of the lifting elevator; a parking island is arranged on the outer side ofthe bottom of the lifting elevator and communicates with the bottom of the lifting elevator; vehicle bearing plates are used for bearing vehicles; the translation cars drive the vehicle bearing platesto move longitudinally; the parking places are internally provided with turning parking spaces for turning of the vehicles; the building ambulatory type stereo parking garage is built in the space above a sidewalk of a hospital, or a factory, or an institution, or a school or a residential area; the parking island is arranged on a slow lane; and the bottom of the lifting elevator is arranged in the position, on the inner side of the slow lane, of the sidewalk. The overall design concept of the building ambulatory type stereo parking garage is novel, the structure is perfect, the function is complete, vehicle parking and picking-up are convenient, energy resources and space are saved, and the application environment is friendly.