The Human Immunodeficiency Virus (HIV) is the virus that leads to AIDS. HIV belongs to a subset of retroviruses called lentiviruses (or slow viruses), which means that there is an interval （sometimes years） between the initial infection and the onset of symptoms. Upon entering the bloodstream --through mucous membranes or blood-to-blood contact. So early diagnosis is very important.HIV PCR Fluorescence Quantitative Detection Kit combines the technologies of nucleic acid amplification and probe to detect HIV-1 RNA. HIV-1 RNA is reverse transcribed and a specific fragment is amplified with specific primers in a one-step RT-PCR reaction. The products are detected by using a specific Taqman-MGB Probe.