The invention discloses a deep brain stimulation system which comprises an external detection control and ultrasonic sending device and an intracerebral ultrasonic receiving and stimulation treatment device. The external detection control and ultrasonic sending device is positioned outside the body of a patient and mainly comprises a microprocessor, a storage unit, a detection unit, an electrode array, an ultrasonic signal amplifier, a transducer, a display unit, a keyboard unit, a power source unit and a clock unit, and an intracerebral ultrasonic receiving and stimulation treatment device is implanted deeply in brain tissue of the patient and mainly comprises a transducer, a voltage gain and rectifier circuit, a voltage stabilizer, a control circuit unit and a stimulation electrode. The deep brain stimulation system is used for treatment of nervous system diseases like Parkinson's disease, torsion spasm, spasmodic torticollis, chorea and epilepsy.