The invention provides an ecological lateral-moving rotatable sliding rail parking device. The ecological lateral-moving rotatable sliding rail parking device comprises first sliding rails arranged inthe direction perpendicular to the parking direction, and two first sliding rails are oppositely and parallelly arranged and separately arranged on a car head and a car tail. A skeleton which can horizontally move along the first slide rails is arranged on the first slide rails, the skeleton is provided with an upper layer tray used for placing an upper layer car, the upper layer tray moves vertically in the skeleton, and the skeleton is used for driving the upper layer tray to move horizontally along the first slide rails. A second slide rail parallel to the first slide rails is arranged between the two slide rails, a lower layer tray used for placing a bottom layer car is arranged on the second slide rail, and the lower layer tray drives the bottom layer car to move horizontally along the second slide rail. The first sliding rails and the second sliding rail are rotatable sliding rails, and the skeleton and the lower layer tray are driven to move horizontally by the rotation of thefirst sliding rails and the second sliding rail. The first sliding rails and the second sliding rail comprise driving units, rotating pieces, driving wheels and driven wheels.