Objective To observe the clinical epidemic characteristics of the onset and syndrome types of Bell’s paralysis. Method The clinical epidemic investigation was given to 208 patients with Bell’s paralysis （the onset of paralysis within 3 days） on their causes and syndrome types. Result The analysis on etiology showed that the disease causes were mainly wind-cold

tire and humoursome and the most common cause was wind-cold attack. The analysis on seasonal distribution showed that there were 32 cases （15.38%） came on in spring

49 （23.56%） in summer

57 （27.40%） in autumn and 70 （33.65%） in winter. The result of the investigation on syndrome types showed that 52 cases （25.00%） pertained to wind-cold type and 156 （75.00%） to wind-heat type. Conclusion The leading cause of Bell’s paralysis is wind-cold evil. The onset of the disease is mostly in winter and autumn and less in spring and summer. The syndrome types of acute Bell’s paralysis are classified as wind-cold type and wind-heat type

and more wind-heat type is observed.