Objective To investigate the etiology and clinical types of sporadic virus hepatitis in wenling city and to provide the base for the preventive strategy. Methods The data of 3317 sporadic viral hepatitis cases in the Affiliated Wenling Hospital of Wenzhou Medical College were analysed retrorespectively. Results Of the 3317 cases, the rates of hepatitis A, B,C,D, E,G, coinfection and infection of uncertain type were 1.63％ ,64.97％ ,0.66％ ,0.12％ ,9.52％,0.06％,16.79％ and 6.24％ respectively.The clinical types included 1181 eases of chronic hepatitis (35.60％),965cases of hepatocirrhosis(29.09％ ) ,904 cases of acute hepatitis(27.25％ ), 175 cases d liver cancer(5.28％ ) ,56 cases of serious hepatitis( 1.69％ ),36 cases of cholestatic hepatitis( 1.09％ ). The rates of hepatitis B in chronic hepatitis,hepatocirrhosis, serious hepatitis, liver cancer and coinfection were 74.68％ ,82.80％ ,71.43％ ,97.71％ and 88.51％respectively. The incidence of hepatitis A reduced, while the incidence of hepatitis B and E increased in acute hepatitis. The rate of uncertain type hepatitis was 18.03％ in acute hepatitis. Conclusions Most patients are infected with hepatitis B virus in Wenling city, especially in adults. Extended vaccination and strengthening the management of volunteer donors and blood transfusion are effective measures to prevent the transmission. Meanwhile, the hepatitis E epidemic should be controlled strictly, and the study of new hepatitis virus should be strengthened.