China’s blood donation law provides that healthy citizens are encouraged to donate blood without compensation. At the same time, after blood donation, the blood station will do various comprehensive checks on the donated blood and will notify the donor by phone if there are any unqualified conditions. Common blood failures include: a. Elevated aminotransferase concentration of the donor, whether it is glutathione or glutamic oxalacetic aminotransferase, as long as the aminotransferase concentration is elevated is generally unqualified blood. Second, hepatitis B surface antigen carrier positive, if the hepatitis B surface antigen positive, this situation blood is also unqualified, as well as hepatitis C antibody positive people, HIV antibody positive and syphilis antibody positive, these people donated blood are unqualified, because these diseases can be transmitted through the blood. If the blood is imported to others, it may cause the spread of these diseases, so the blood donated is not qualified for the above reasons.