The present utility model discloses a filament blowing device of a filament mounting machine rolling hook station. The device comprises a mechanical arm for clamping filaments, the mechanical arm is provided with a blow hole, and a pneumatic tube is utilized to blow the filaments. In the device, by arranging the blow hole on the mechanical arm and blowing the filaments through the pneumatic tube, the filaments can reach a station and shove off on a rolling hook station device without mechanical external forces, the filaments can be connected with molybdenum wires of core columns conveniently, the rate of damaging the filaments through using the mechanical external forces can be reduced, costs are saved, operating time is saved, product quality is guaranteed, and the aim of reducing cost and improving effect is reached. Moreover, the device is simple in structure and convenient for installing and using.