Hepatitis B Immunoglobulin (HBIg) is a kind of exogenous antibody for passive prevention of hepatitis B virus infection, after injection, it can make the human body rapidly obtain highly effective protective immunity, which can rapidly remove free hepatitis B virus in serum in short term, prevent further spread of infection and regulate immunity. The price of Hepatitis B Immunoglobulin is related to the manufacturer, the dosage of Hepatitis B Immunoglobulin is 200IU, 2ml/count, Hualan produced Hepatitis B Immunoglobulin price is about 300RMB, the price of Shanghai produced is about 350RMB, the price of Shenzhen produced is about 300RMB, and the price of the imported Hepatitis B Immunoglobulin is more expensive, more than 1,000RMB. Hepatitis B immunoglobulin is mainly used for two purposes: (1) for blocking mother-to-child transmission of hepatitis B. Newborns of hepatitis B surface antigen-positive pregnant women need to be injected with hepatitis B high-efficiency immunoglobulin in a timely manner after birth, and at the same time be vaccinated with hepatitis B vaccine, so that the mother-to-child transmission of hepatitis B can be effectively blocked. (2) Used for prevention of hepatitis B susceptible people with the risk of HBV infection, such as health care workers inadvertently contact with the blood of hepatitis B patients with skin breakage at work, they should be injected with hepatitis B immunoglobulin 1 immediately (within 12 hours), and then repeat the injection once a month later, which can play a role in preventing and preventing further spread of the infection. Hepatitis B immunoglobulin should be stored at 2℃-10℃, freezing is strictly prohibited, low amount of precipitation may occur after long storage, but once shaken well, it should dissipate quickly. If there is precipitation that cannot be shaken, foreign matter or ampoule with cracks, etc., it should not be used. In conclusion, Hepatitis B Immunoglobulin is an immune preparation for the prevention of Hepatitis B virus infection. The price varies according to the manufacturer, but it is usually only for temporary use and does not provide long-lasting immunity.