Highway surface layer using modified asphalt, road maintenance also began to use, the amount of road asphalt increased. In 2015, the total length of highways and expressways reached 4.5 million km and 108,000 km, ranking first in the world. With the successful application of asphalt concrete in the field of road, the use of modified asphalt concrete to lay runway in airport construction is increasing rapidly. With the rapid development of transportation in China, the demand of SBR for road asphalt modification is increasing year by year. SBR modified asphalt has excellent low temperature resistance.