To provide a potential therapeutic tool which can be more easily used.SOLUTION: There is provided a potential therapeutic tool 100 for applying a constant potential to a body 120 of a user in an insulation state, and the tool comprises: a potential generation part 101 for generating the potential; a leakage detection part 102 for detecting leakage of power generated due to breakage of insulation of the body; a first notification part 103 for notifying a user of a fact that a value of the leakage current detected by the leakage detection part exceeds a first value, in a visual state; and a second notification part 104 for notifying a user of a fact that the value of the leakage current has exceeded the first value for a first period continuously, since notification by the first notification part, in a visual or auditory state.SELECTED DRAWING: Figure 1【課題】より使い勝手のよい電位治療器を提供する。【解決手段】ユーザの生体120に対して、絶縁状態で一定の電位を与える電位治療器100であって、前記電位を発生させる電位発生部101と、前記生体の絶縁が破れることで生じた電気の漏れを検出する漏電検出部102と、前記漏電検出部によって検出された漏れ電流が第1値を超えたことを、視覚的に前記ユーザに通知する第1通知部103と、前記第1通知部による通知から第1時間連続で前記漏れ電流が前記第1値を超えていた場合に、聴覚的または感覚的に前記ユーザに通知する第2通知部104と、を備えた。【選択図】図1