A device for repelling animals using acoustic waves, comprising an acoustic wave generation unit (11) first and second frequency adjusting units (12, 13) to induce the generation of resonance of the pulse signal generated from the acoustic wave generation unit (11) an acoustic wave output unit (14) to output the acoustic wave a resonance generation-type acoustic wave output unit (15) to output the acoustic wave a resonance generation unit (16) which forms a space in which the acoustic wave outputted from the acoustic wave output unit (14) and the acoustic wave outputted from the resonance generation-type acoustic wave output unit (15) stay at the same time, and amplifies the volume and the frequencies by inducing resonance to be generated by mutual interference and an acoustic wave diffusing unit (17) which diffuses the acoustic waves expanded by the resonance to a free space via an induction pathway.
