PROBLEM TO BE SOLVED: To provide an electrostimulator configured so that a patient himself/herself can easily arrange an electrode in an appropriate position.SOLUTION: An electrostimulator includes: an oscillator for oscillating an electric current for electric stimulation and an electrode arranged and fixed on a surface of a specific site of a living body for transmitting the electric current for electric stimulation oscillated by the oscillator to the living body. The electrode includes a film-like base material, a conductive part fixed on a living body surface contact surface side of the base material, and an adhesive member arranged on a living body surface contact surface of the base material. The shape of the base material is a shape that can determine the position where the electrode is arranged and fixed with the unevenness of the living body surface being an index.COPYRIGHT: (C)2015,JPO&INPIT【課題】患者自身が容易に適正な位置に電極を配置できるように構成された電気刺激装置を提供する。【解決手段】本発明の電気刺激装置は、電気刺激用電流を発振する発振器と、生体の特定部位の表面に配置固定され、該発振器が発振した電気刺激用電流を生体に伝える電極とを備え、前記電極は、フィルム状の基材と、該基材の生体表面接触面側に固定された導電部と、前記基材の生体表面接触面に配された粘着部材とを有し、前記基材の形状が、生体表面の凹凸を指標として電極の配置固定位置を決定可能な形状である、ことを特徴とする。【選択図】図4