Emulsified asphalt mixture can open up traffic in advance, greatly facilitate the masses of travel, improve production efficiency, and promote the development of the local economy. It has been widely promoted around the world. However, there are many problems in emulsification technology, such as the inability to resist freezing damage, poor adhesion, poor aging resistance and so on. After repeated studies, adding a polymer modified material was added on the basis of adding emulsifiers, and a new kind of emulsified asphalt with superior performance was compounded. According to the mechanism of emulsifier modification, the slow cracking fast condensing emulsifier and SBS polymer modified material were selected, and the mixture ratio test was started by compounding methods. Finally, the performance test indexes are compared to determine the optimal mix ratio for emulsified asphalt, which provides the possibility for the pavement application of emulsified asphalt. After being paved in the test section, the result shows that the application of modified emulsified asphalt material in the G205 Huiyang section is excellent, and it can open up the traffic in advance to meet the requirements of industry standards, and conforms to the development concept of green and low-carbon.