This frequency therapy device 10 is characterized by comprising a main device part 20 for passing a current corresponding to a predetermined voltage waveform between a pair of electrode pads 12, 12, and a waveform memory 22 provided therein and storing a plurality of voltage waveforms at different frequencies, and in that: the frequency therapy device 10 is configured so that the waveform memory 22 stores the waveforms in any of N waveform storage regions 22-1 to 22-N for each of N frequencies as waveform data comprising a square wave with a sampling frequency of 192 kHz or more and a number of quantization bits of 24 or more, the waveform data is read from the waveform memory 22 for each frequency, the waveform data is converted to an analog waveform by a D/A converter 24 during a preset time, and a current corresponding to the voltage waveform is passed between the electrode pads 12, 12； and the waveform memory 22 repeatedly and successively stores the waveform data for every set time for each frequency.
