AIDS blood test can assist the doctor to carry out the diagnosis of AIDS, the following indicators: 1, through the blood test for AIDS antibody screening, by the CDC designated department of the AIDS diagnosis; 2, check the number of HIV, can assist the physician to determine whether the drug treatment is effective; 3, through the blood examination of the T-cell subpopulation and the number of, to determine the patient’s immune function, if immune If the immune function is seriously impaired, it means that the treatment effect is not good; 4, it can also be carried out, for example, blood routine, inflammatory markers, can determine whether the patient is co-infected. In conclusion, blood test is a very important means of examination, which can effectively help doctors give appropriate treatment plan.