Viral hepatitis B (hereafter referred to as hepatitis B) is a worldwide infectious disease caused by hepatitis B virus (HBV), and is a national statutory infectious disease of category B in China. Currently, the number of people carrying hepatitis B surface antigen is over 300 million worldwide. The common denominator of hepatitis B is the serological markers of HBV that can be measured. These markers include HbsAg, HbsAb, HbeAg, HbeAb, HbcAb, or commonly known as hepatitis B two-and-a-half, and the prevention, diagnosis and efficacy of hepatitis B rely heavily on the hepatitis B two-and-a-half test. The enzyme-linked immunosorbent assay (ELISA) is the main method for detecting the above immunological serum markers of hepatitis B. It has the advantages of simplicity, sensitivity and specificity, and has become the main means of diagnosing and typing the efficacy of hepatitis B in primary hospitals. In the usual work, life, many friends often ask: hepatitis B two pairs of half test in these indicators of negative or positive in the end means what? The following I will analyze some of the more common test results in the hepatitis B two pair of half to analyze. The first category, three positive 1, HbsAg, HbeAg, HbcAb three positive, the rest negative, hepatitis B major triplet: the results of the patient is generally in the acute and chronic infection period, at this time a large number of hepatitis B virus replication, more infectious. 2, HbsAg, HbeAb, HbcAb three positive, hepatitis B small three positive: this result indicates that the patient is less infectious, refers to the patient in the recovery period of infection or chronic antigen carriers. 3, HbsAb, HbeAb, HbcAb three positive, indicating that the patient is in the recovery period of hepatitis B. The second category, two positive people 1, HbsAg, HbcAb is positive, the rest negative, suggesting that the patient is a carrier of hepatitis B and hepatitis B virus and has a certain degree of infectiousness. 2. HbsAg and HbeAg are positive, suggesting that the patient is in the early stage of acute hepatitis B. 3. HbeAb and HbcAb are positive, suggesting that the patient is in the recovery period of hepatitis B or has a previous history of hepatitis B. 4. HbsAb and HbcAb are positive, suggesting that the patient has hepatitis B resistance (hepatitis B vaccination or has recovered from infection). The third category, single positive 1, HbsAg positive, the rest negative, suggesting that the patient is in the incubation period of hepatitis B or said to be healthy with the virus. 2, HbcAb positive, suggesting that the patient is in the window period of infection or a recessive carrier or has been infected by the hepatitis B virus. Most of the hepatitis B patients through effective treatment, the hepatitis B virus surface antigen can be turned negative to reduce or stop the damage to the liver, and then return to normal work and life.