The invention relates to a system and a method for the optimizing control of the track of a rotary crane. The system comprises a crane optimization track control device, a movement mechanism position detection module and a position control module, wherein the crane optimization track control device is connected with the movement mechanism position detection module and the position control module,and the movement mechanism position detection module and a movement mechanism control module are connected with movement mechanisms. The method comprises the following steps of: pre-designing and optimizing coordinate movement tracks in a natural space; converting the coordinate movement tracks into coordinates of the movement mechanisms; and performing real-time control on each movement mechanism. The system and the method can conveniently realize track optimization and track tracing, effectively reduce the running distance, improve the movement speed, save the movement space, reduce shakingand twisting of objects, are convenient for positioning control, are convenient to realize lifting and synergistic operations of large-size objects by a plurality of cranes, realize safety, high efficiency, energy conservation and emission reduction in the lifting process, greatly reduce the labor intensity, and has good economical efficiency and wide application range.