The invention relates to a pure tone-based tinnitus treatment system comprising a control module, an audio playing module, a micro-current generation module, a pure-tone voice frequency and an earphone. The control module controls the audio play module to play pure-tone audios in a random way and eliminates pure-tone frequency in an octave with tinnitus frequency as central frequency; the earphone is provided with conductive electrodes; the micro-current generation module is connected with the conductive electrodes; when the pure-tone audio is played, a micro-current pulse signal is produced, so a nervivagus passing through the surrounding of an auditory meatus can be excited. Compared with the prior art, with pure-tone excitation and nervivagus excitation, a central pivot cortex can be inducted in an orientated way to produce favorable neuroplasticity changes; and tinnitus perception changeover and pathological central pivot plasticity changes can be achieved. Different from a traditional treatment method, a personalized sound treatment method is designed for a tinnitus occurrence mechanism; and great tinnitus treatment effect can be achieved; and the treatment process is simple and convenient.