Cable crane system and erecting method thereof

The invention relates to a cable crane system and an erecting method thereof, the cable crane system is specifically applied to the cable crane system with one side provided with a cable tower and the other side not provided with the cable tower, the cable crane system comprises a cable pedestal, an anchoring seat, a cable and a cable adjusting system, and the cable is erected on the cable pedestal and connected with the anchoring seat. By tightening the adjusting tackle blocks at one ends of the bearing cables, each bearing cable can reach the designed empty cable sag after being installed, and initial adjustment of the sag of the bearing cables is achieved while erection of each bearing cable is completed; after the sports car and the crane on the sports car are installed, the sag of each bearing cable is finally adjusted through the cable adjusting system connected with each bearing cable, so that the gravity borne by the sports car in the construction process can be uniformly distributed on each main bear