The incubation period of AIDS in the elderly is related to age. The incubation period of AIDS is related to various factors such as age, immunity and subtype of the infected virus, etc. Generally speaking, the incubation period is relatively shorter for patients who are older and have poorer immunity. On average, the incubation period of AIDS is about 9 years. The incubation period of the elderly, immunocompromised people and HIV-I infected people will be relatively shorter, and the mortality rate will be higher. The incubation period and mortality rate of AIDS are affected by many factors and should be analyzed in a comprehensive manner, rather than being judged solely on the basis of age. In conclusion, the incubation period of AIDS is related to age. After being diagnosed with AIDS, one should follow the doctor’s prescription for antiretroviral treatment as soon as possible in order to improve the quality of life.