By using GTM（gyratory testing machine） method, with equal specimen volume parameters as the criterion, the suitable molding and mixing temperature of Evotherm warm mix rubber modified asphalt mixture was determined. By using two stage design method, on the basis of hot mix rubber modified asphalt mixture mixing ratio test and the two parameter system, the asphalt content and test temperature of warm mix rubber modified asphalt mixture was designed to ensure the pavement performance in terms of material composition and volume parameters. Then pavement performance test of the designed warm mix rubber modified asphalt mixture was conducted and the comparative analysis of the corresponding hot mix rubber modified asphalt mixture was made. The test results show that GTM method could decrease the suitable molding temperature of warm mix rubber modified asphalt mixture compared with Marshall method. Moreover, the low and high temperature performances as well as the water damage resistant performance of warm mix rubber modified asphalt mixture based on GTM are superior to that of hot mix rubber modified asphalt mixture, and its compression modulus is roughly equal to that of the hot mix rubber modified asphalt mixture, which would not affect the pavement structure design.