The utility model relates to the technical field of overpass class. The overpass is characterized in that when a first right lane of an arch overpass bridge of a longitudinal road rises to a height allowing pedestrians to pass through, turns right to be above a sidewalk, crosses over a lateral road and turns left to become a longitudinal left-turn overhead ramp, turns around along the outer side and goes down to the height allowing pedestrians to pass through, goes straight in parallel to the ground till a first lane of a lateral road and turns right and goes down to merge into the original first lane. A lateral left-turn ramp is arranged on the first right lane of the lateral road, turns right and goes up till being connected with the turning point of the longitudinal left-turn ramp, turns left at the inner side to cross over the longitudinal road and the longitudinal left-turn ramp to become a lateral left-turn small arch ramp, and goes down till the highest point of the arch overpass bridge as the exit of the lateral left-turn ramp to merge into the arch overpass bridge. A longitudinal pedestrian bridge is additionally arranged over the exit of the longitudinal left-turn ramp and the entrance of the lateral left-turn ramp. Under the arch overpass bridge, shops are spread on ground and in space except for the lateral road and the lateral pedestrian sidewalk.