By some experiments,the paper analyzes the influence of the SBS content on the needle penetration,ductility and softening points, introduces the manufacturing methods for the design of the SBS modified asphalt,illustrates the technical points for the asphalt in the construction, and points out the asphalt can promote the technical indexes after the modification,extend the pavement service life.%通过实验分析了SBS含量对沥青针入度、延度及软化点的影响，并对SBS改性沥青的设计与制备方法进行了介绍，阐述了SBS改性沥青在工程施工中的技术要点，指出对沥青进行改性后，提升了各项技术指标，延长了路面的使用寿命。
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