To provide an electric stimulation device that is superior in operability, safety, space conservation, and reduced cost. The present invention is provided with: output circuits (6b1-6bn) that supply an electric stimulation output to a plurality of sets of electrodes (71a, 71b to 7na, 7nb)； and electrode mounting detection circuits (6c1-6cn) that detect that each electrode is mounted to a human body. One output adjuster (3) is provided that adjusts output by means of a manual operation, and the output adjuster (3) is configured in a manner so as to be able to simultaneously adjust or individually adjust the output to the plurality of sets of electrodes by means of the mounting to a human body being recognized before starting output.本發明提供操作性、安全性及節省空間/成本削減方面優異之電氣刺激裝置。該電氣刺激裝置採用如下構成，其具備：輸出電路6b1~6bn，其將電氣刺激之輸出供給至複數組導子71a、71b；~；7na、7nb；以及導子安裝檢測電路6c1~6cn，其檢測各導子已安裝於人體；且設置有一個利用手動操作對輸出進行調節之輸出調節器3；輸出調節器3可識別出在輸出開始之前，複數組導子已安裝於人體，藉此，同時對朝向複數組導子之輸出進行調節，或分別對該輸出進行調節。
