Abstract: In order to analyze the impact of reclaimed asphalt pavement(RAP) on viscoelastic response and fatigue performance of hot mix asphalt(HMA), different RAP content(10%, 20%, 30%) and gradation (AC-13、AC-16) of HMA were designed. The dynamic modulus and phase angle at different temperature and loading frequencies were obtained by using the asphalt mixture performance tester (AMPT), and then using time-temperature superposition principle the dynamic modulus master-curve of different asphalt mixtures were obtained. After that, uniaxial tensile fatigue test was conducted on different asphalt mixtures, and the damage characteristic curve ( C-S) and energy-based failure criterion with experimental cycles to failure ( G ^R-N _f ) were determined by using simplified viscoelastic continuum damage (S-VECD) model. The results show that the dynamic modulus of asphalt mixture decreases with the increasing temperature and the decreasing loading frequency. Lower temperature and higher frequency, the asphalt mixture more like elasomer, otherwise, it likes viscous substance. The mastercurve of asphalt mixture shows that the higher RAP content is, the larger dynamic modulus is, but there is no significant difference. The fatigue test shows that with the RAP content increase, the fatigue performance decreases, which means the lower relaxation ability. So the fatigue performance should be paid more attentionta, when higher RAP content is used.