Electromyographic feedback electrical stimulator

The invention provides an electromyographic feedback electrical stimulator. The electrical stimulator comprises a power supply management module, a microprocessor, a voice record-reproducing control module, a signal lamp control module, a touch type programmable module, an electromyographic signal processing and feedback module, a waveform modulation module, a stimulation current detection and overcurrent protection module and a waveform drive module. By applying voice and a signal lamp as guidance, the electrical stimulator prompts a patient to participate in exercising actively, promotes the patient to participate in rehabilitation actively, and performs noninvasive measurement and characteristic value extraction on an electromyographic signal actively induced by the patient; and when the spontaneous electromyographic signal reaches a set electromyographic induction value, the device generates electrical stimulation on muscle of the patient so as to realize intelligence of the rehabilitation process.