Hepatitis B quantification refers to the specific quantification of hepatitis B markers, such as the specific quantification of hepatitis B surface antigen, hepatitis B surface antibody, hepatitis B e antigen, hepatitis B e antibody, and the specific quantification of the five hepatitis B markers, namely hepatitis B core antibody. These specific quantifications can more accurately reflect the status of hepatitis B infection in the body. Hepatitis B quantification now also allows for the evaluation of the effectiveness of hepatitis B treatment and the prognosis of the hepatitis B infection to be inferred. If the quantification of Hepatitis B surface antigen is relatively low, it is easy to realize the conversion of Hepatitis B surface antigen; if the quantification of Hepatitis B surface antigen is very high, the effectiveness of antiviral treatment may not be satisfactory. Nowadays, the quantitative hepatitis B test can still play a big role in the treatment and guidance of hepatitis B virus carriers or patients with hepatitis B.