 This study will recruit 520 treatment-naive and 150 treatment-experienced patients to take the first line or second line of antiviral therapy. This study aims to set up a well-trained clinical and laboratory team in China, to explore the effects and side-effects of the first-line and the second line of ARV treatment in Chinese HIVAIDS adult patients, to investigate the side-effects of ARV drugs, such as hepatotoxicity, lipoatrophy, cardiovascular influence, to explore the pharmacokineticspharmacodynamics PKPD of Chinese generic ARV regiments and effective drug concentrations and to explore primary and secondary drug resistance in China and the immune reconstitution characters of long term ARV in Chinese adult AIDS patients. This study might provide more practical and optimizing prove for the treatment guideline for resource limited areas. 