The present invention relates to a electrotherapy pen for a potential therapeutic device, which mainly has a contact end at the front end of the main body and a ground end at the rear end, so that the current adjustment unit is provided with an adjustment button and a grip outside the handle. A current adjustment circuit is arranged in the handle, the adjustment button is connected with the current adjustment circuit, and the current adjustment circuit is electrically connected between the contact end and the ground end to adjust the current through the current adjustment circuit by using the adjustment key； The current that can be adjusted by the electrotherapy pen can relatively change the intensity of the current stimulation applied to the user, so as to be more widely applicable to different user needs, so that it is more comfortable during use, and Those who have increased utility characteristics in their overall implementation.本創作係有關於一種電位治療器之電療筆，其主要係於主體之握柄前端設有接觸端、後端連接設有接地端，令電流調整單元於握柄外設有調整鍵及於握柄內設有電流調整電路，調整鍵與電流調整電路連接，並令電流調整電路電性連接於接觸端與接地端之間，以利用調整鍵調整通過電流調整電路之電流大小；藉此，即可供調整通過電療筆之電流大小，相對即能改變對使用者所施加的電流刺激強度，以更為廣泛的適用不同使用者之不同使用需求，令其在使用過程中更具舒適性，而在其整體施行使用上更增實用功效特性者。
