The normal value of hepatitis B virus DNA is zero. Normal people, those who are not infected with the hepatitis B virus, do not have the hepatitis B virus in their bodies. Patients who are infected with the hepatitis B virus need to have their hepatitis B virus DNA checked to clarify the amount of virus, which is done through a blood draw. Under normal circumstances, the patient’s body should not contain hepatitis B virus DNA, and some hospitals measure the indicator within 100 copies/ml. If it is within 100 copies/ml, it means that the disease is well controlled and the replication of the virus is inactive and stable, i.e. the replication of the virus has been suppressed. Therefore, the normal value of hepatitis B virus in human body should be absent, which is zero. For people infected with hepatitis B virus, large tertiary hospitals should all be within 100 copies/ml, and there may be some hospitals with values within 1000 copies/ml. Generally less than 1000 copies/ml can indicate that hepatitis B has been suppressed and the amount of virus is not high, but it is also infectious.