电针是针刺腧穴"得气"后，联接电针器，利用脉冲电流加强刺激，以防治疾病的一种方法。

Electro-Acupuncture is an approach of preventing and treating diseases, in which electrical stimulator is connected to the points after the needling sensation is obtained, and the sensation would be enhanced via the pulsative current to the points.

电针器的种类很多，但主要区别在于输出波形和频率的选择。都是采用振荡发生器输出脉冲电流，要求输出电压（峰值)在40-80伏之间，输出电流小于一毫安。它的特点是：刺激量大，安全，可代替手法运针，节省人力。