PURPOSE: To secure the easy driving at a corner part and excellent view at a straight part, and to increase the number of car parking spaces by forming a mobile multistory parking garage of spiral guide passages, horizontal straight and long passages, and horizontal straight and short passages, and turning corners connecting these passages, and providing horizontal car parking spaces on each straight passage and inclined car parking spaces on each turning corner.

CONSTITUTION: Horizontal straight long passages 2a, 2b are arranged in the longitudinal direction of a structure 1, and horizontal straight short passages 3a, 3b are arranged in the width direction. The long passages 2a, 2b are connected to the short passages 3a, 3b by turning corners 4a-4d. Inclination capable of partly elevating/lowering is provided on the turning corners 4a-4d by the short passages 3a, 3b and four corners 4a-4d. Horizontal car parking spaces 5a-5d are provided on the inner and outer sides of the long passages 2a, 2b, and horizontal car parking spaces 5e, 5f on the outer side of the short passages 3a, 3b, and inclined car parking spaces 6a-6d on the outer side of the corners 4a-4d respectively. The inscribing circle of the corner is of 1/6 gradient, and the inclined car parking space is of 4% gradient of one floor height. Entering/ leaving the parking space by a driver can be facilitated thereby.