In order to prepare anionic emulsified asphalt with good emulsifying effect and stable performance, the emulsion process of anionic emulsified asphalt was studied, and then different emulsifiers were mixed, and their emulsification effect was evaluated. The three indexes of anionic emulsified asphalt are improved obviously compared to the matrix asphalt. The new anionic emulsified asphalt has many advantages, such as simple production process, good emulsification effect, good storage stability, and so on. S...