In order to investigate the high and low temperature performance of silicone rubber powder (SRP)-SBS compound modified asphalt, we usednine kinds of modified asphalt with different mixing ratios compounded. By the conventional test and the analysis method of the asphalt rheology test, the effects of SRP and SBS content on the viscoelasticity of the compound modified asphalt were qualitatively and quantitatively analyzed by the conventional test and the analysis method of the asphalt rheology test. When we analyzed the results of low temperature bending beam rheometer test, in order to comprehensively consider the creep rate and the flexural creep, we used theratio of this two values and low grade temperature , and analyzed the low temperature performance of compound modified asphalt comprehensively and accurately. With the frequency sweep test at multiple temperatures, the master curve of the complex shear modulus of the compound modified asphaltwas constructed, and we also analyzed the performance differences of the compound modified asphalt under different mixing ratios in a wide frequency range. For studying the situation under extreme frequency, the improved CAM (Christensen-Andersen-Marastean) model was introduced to analyze the high temperature performance of compound modified asphalt. It shows that the compound modified asphalt has good high and low temperature performance, and the recommended compounding ratio is 17.5% SRP+4% SBS.