The consequences of mother-to-child transmission of hepatitis B carriers should depend on the patient’s body of hepatitis B virus DNA, whether there is progress, etc., the severity can not be generalized. Most of the incidence of hepatitis B virus carriers in China is due to mother-to-child transmission, which can be transmitted through the placenta or vertically through the birth canal during labor and delivery. Hepatitis B carriers are mainly manifested by the problem of hepatitis B surface antigen positivity when testing for the hepatitis B 5 items. Hepatitis B surface carriers need to be tested regularly for the number of hepatitis B virus replications, and if the number of hepatitis B virus replications is higher than the upper limit of the normal value, they need to be treated with anti-hepatitis B virus drugs under the guidance of a doctor. For hepatitis B carriers older than 30 years of age, family history of cirrhosis or liver malignant tumor, also need to start antiviral treatment program in time. For hepatitis B surface antigen carriers, it is recommended to regularly consult the Department of Infectious Diseases of regular hospitals for review, and not to be negligent, so as not to delay the disease.