Objective To explore curative effect of fastigial nucleus stimulation（FNS） in treating the symptoms of patients with nonmalignant arrhythmia. Method In a random period

FNS was used to treat 45 patients who went to hospital for repeating palpitation

and had arrhythmia（supraventricular premature beats

supraventricular runs

ventricular premature beats） confirmed by 24 h holter monitoring electrocardiogram

and whose state of illness did not improve after being treated by one or several antiarrhythmic drugs. After those patients were treated by FNS 40 minutes a time

twice a week

or so 15 times

the changes of symptom were observed. Results Effective rates of FNS in treating palpitation

sleep disorder

chest distress

dizziness/headache and hypodynamia were 80.0%

76.9%

81.5%

87.1% and 82.9% respectively.After treatment by FNS

the scores of palpitation

sleep disorder

chest distress

dizziness/headache and hypodynamia significantly decreased（P<0.01）. Conclusion FNS can effectively improve symptoms of palpitation

sleep disorder

chest distress

dizziness/headache and hypodynamia of patients with nonmalignant arrhythmia.