Provided is an electric muscle stimulating device having an operation surface on a skin. A treatment operation surface has at least one first electrode having one of a positive polarity and a negative polarity, and a first electrode separated from the first electrode and having the other polarity of a positive and a negative polarity. 15 and at least one second electrode 17 located around the first electrode 15 so that current flows between the first electrode 15 and the second electrode 17. The area twice as large as the total area of the second electrodes 17 is equal to or larger than the total area of the first electrodes 15 and equal to or smaller than twice the total area of the first electrodes 15. [Selection diagram] FIG.【課題】皮膚への施術作用面を有する電気筋肉刺激機器を提供する。【解決手段】施術作用面１３がプラスとマイナスのうち一方の極性を有する少なくとも１つの第１電極１５と、プラスとマイナスのうち他方の極性を有し、第１電極１５から離れて第１電極１５の周囲に位置する少なくとも１つの第２電極１７とを備え、第１電極１５と第２電極１７との間で電流が流れるようになっている。第２電極１７の合計面積の２倍の面積は、第１電極１５の合計面積以上であり且つ第１電極１５の合計面積の２倍以下である。【選択図】図２
