Based on the materials of old SBS modified asphalt mixture, the influences of compaction temperature on physical and mechanical properties of material regeneration performance under four normal RAP contents (20%, 40%, 70%, and 100%) and the mesures to improve performance of mixture under low compaction temperatures were investigated by laboratory tests. The results showed that, with the increase of compaction temperature, the regeneration performance of old SBS modified asphalt mixture was improved; with the increase of RAP (Recycled Asphalt Pavement), the required suitable compaction temperature increased, and the impacts of compaction temperature on compactness of mixture was more significant. It was suggested that the mesures of controlling RAP (Recycled Asphalt Pavement) content, increasing coarse aggregate content appropriately and extending mixing time could be applicated to improve the performance of mixture, in order to achieve the same performance as compacting under a high compaction temperature and to meet the requirements of road.