The invention discloses a winch system. The cost is reduced, the winch system can adapt various operation conditions, the life of a steel wire rope is prolonged, difficulty of matching and type selection is lowered, and the requirement for rope arrangement of a rope arranger is lowered. According to the technical scheme, the winch system is characterized in that the winch system comprises a traction winch, a horizontal guiding pulley, a horizontal tensioning compensation pulley, a rope storage winch and the steel wire rope; the rope storage winch is used for storing the steel wire rope; one end of the steel wire rope wound on the traction winch is connected with the rope storage winch; the traction winch absorbs tension of the steel wire rope through friction type double winding drums so as to reduce pulling force, between an inlet and an outlet of the traction winch, of the steel wire rope; the steel wire rope is pulled out from the traction winch, passes through the horizontal guiding pulley and the horizontal tensioning compensation pulley and then enters the rope storage winch; and a pulley shaft of the horizontal guiding pulley detects the pulling force of the steel wire ropepulled out from the traction winch, and the horizontal tensioning compensation pulley provides the stable tension for the steel wire rope entering the rope storage winch according to the pulling force, detected by the horizontal guiding pulley, of the steel wire rope.