The invention discloses a motor-driven rotating disc type overpass at crossroads. The motor-driven rotating disc type overpass at the crossroads comprises an overpass body, piers and stairs, wherein the overpass body is in a disc-shaped plane structure, four piers are symmetrically arranged at the bottom of the overpass body and are formed into a quadrangle, and stairs are arranged at position which is close to every pier; a motor is arranged in the center inside the overpass body, a rotating disc is horizontally arranged above the motor, a rotating shaft of the motor is vertically arranged at the bottom center of the rotating disc and a surrounding barrier is arranged at edges of the overpass body. The motor-driven rotating disc type overpass at the crossroads has the advantages of being reasonable in design, convenient to use and the like.