文中针对我国客运专线大量采用的无砟轨道结构,建立了一种分析其经济性的寿命周期成本方法,结合某一客运站专线的建设,运用该方法对我国CRTSⅠ型板式无砟轨道的经济性进行了分析,得到无砟轨道经济性较有砟轨道更优的结论,为我国高速铁路无砟轨道经济性分析提供了参考。 Aiming at the ballastless orbit structure widely used in China’s passenger dedicated lines, a method of life cycle cost analysis for its economy is set up. Combining with the construction of a special bus line for a bus terminal, this method is used to analyze the economy of CRTSⅠ slab ballastless track It is concluded that the economy of ballastless track is better than that of ballastless orbit, which provides a reference for the economic analysis of ballastless track of Chinese high-speed railway.