A method for interferential current stimulation by complex active regions, in which the method is adapted to generate low frequency interference active regions formed of staggered electric flux lines by disposing electrodes to stimulate specific parts of a human body by supplying electricity is provided. The method includes following steps: providing a power supply section configured to supply power having two different frequencies including a first frequency power source and corresponding electrical wires thereof and a second frequency power source and corresponding electrical wires thereof； and providing an electrode disposing section configured to provide plural electrodes respectively connected to the first frequency power source and the second frequency power source via the corresponding electrical wires, and interfere each other for generating plural low frequency active regions provided for stimulating a specific part of the human body to achieve the effect of curing various symptoms and muscle trainings.本發明係提供一種複合作用區電刺激裝置，係以複數電極之預設設置而形成複數電力線交錯干擾而產生複數低頻作用區，以供電刺激使用者身體之複數特定部位，該複合作用區電刺激裝置包含，電源供應部，係提供兩種不同頻率之電源，其中包含第一頻率電源及其對應之配置導線，第二頻率電源及其對應之配置導線，以及電極設置部，係提供複數電極且透過對應導線分別對應連結該第一頻率電源以及該第二頻率電源形成複數電力線，並交錯干擾產生複數低頻作用區，係供電刺激使用者身體之複數特定部位，達到各種電刺激治療及鍛練肌肉的效果。
