The hepatitis B vaccination is a three-dose vaccination, which is administered according to the 0, 1, 6 process, that is, one month between the first and second doses, and five months between the second and third doses. The hepatitis B vaccination stimulates the immune system to produce protective antibodies, which are present in the body fluids. Once the hepatitis B virus appears, the antibodies will immediately act to remove it and prevent infection, and will not harm the liver, thus giving the body immunity against hepatitis B to prevent hepatitis B infection. After the first dose of hepatitis B vaccine, only 30% of people can produce hepatitis B surface antibodies, and the effect of antibodies is very unstable. After the second dose, 90% of people can produce hepatitis B surface antibodies, and after the third dose, the antibody positivity rate can reach more than 96%, and the positive effect continues to be maintained at a high level.