Abstract: At 30 kHz,influences of coil turn,input voltage amplitude,current limited resistance and annealing on the giant magnet-inductive effect of Fe73.5Cu1Nb3Si13.5B9 Fe-based amorphous alloy ribbons were studied.The results show that the giant magnet-inductive effect of the amorphus alloy ribbons increased with the more coil turns and the bigger input voltage amplitude but decreased with the bigger current limited resistance.The change range of the giant magnet-inductive effect increased with the bigger input voltage amplitude,and increased first and then decreased with the increase of coil turn and current limited resistance.The giant magnet-inductive effect and its change range were enhanced after annealing compared with the quenched amorphous alloy ribbons.