Building construction tower crane and fixed-point hoisting and lofting auxiliary system thereof

The invention discloses a building construction tower crane and a fixed-point hoisting and lofting auxiliary system thereof. The building construction tower crane comprises a cross arm, a lifting rope and a lifting hook and is matched with the fixed-point hoisting and lofting auxiliary system. The fixed-point hoisting and lofting auxiliary system comprises a base station, a monitoring device and a client terminal. The building construction tower crane is characterized by further comprising a moving station and a speedometer, wherein the moving station is mounted on the cross arm and right above the lifting hook; the speedometer is used for detecting the mileage of the lifting rope; and the moving station receives a satellite difference correction signal from a base station, acquires position information of the moving station and sends the position information to the monitoring device, the speedometer acquires the mileage of the lifting rope, and the monitoring device determines the position of the lifting hook according to the mileage of the lifting rope and the position information of the moving station. According to the technical scheme of the invention, process links in a manual attendance method can be reduced, and the intuition, convenience, accuracy and efficiency of the hoisting operation can be improved.