Abstract: A multi-story transverse shifting type automatic parking device is described which is suited for a multi-story parking building. Each floor of the building is divided into at least one row of equal blocks, each row of equal blocks being formed with an elevator passage way centrally located and at least two parking units on the opposite sides of the elevator passage way. At least one lifting gearframe is installed in the elevator passage way and is driven horizontally from one row to another with a lifting gear mainframe which includes a mother elevator driven vertically and a multi-story daughter elevator driven to move vertically in the mother elevator. A plurality of pairs of transverse shifting mechanisms respectively fastened in each floor of the building are provided and each pair of which are fastened at opposite sides of the elevator passage way.