：在大数据时代和“双一流”建设背景下，高校图书馆开展世界一流学科评价服务，是图书馆服务转型与学科服务向纵深发展的必然要求，是构建和完善世界一流学科评价体系的重要实践。文章在梳理世界一流学科评价服务的内涵、服务层面、服务流程基础上，分析了世界一流学科评价服务的现状和发展需求，研究认为对世界一流学科大数据的数据采集、知识组织与知识服务是高校图书馆是大数据时代开展世界一流学科评价服务的实现路径。

Under the background of the construction of world first-class universities and subjects, university libraries provide the world first-class subject evaluation service which is necessary to the library service transformation and the deep development of the subject service in the big data age. It is the important practice to construct and improve the world first-class subject evaluation system.On the basis of clarifying the connotation and main pattern of the world class subject evaluation service, this paper analyzes the status and development needs of the world class subject evaluation service.It is found that the realization path of the world class subject evaluation service is to collect the big data , knowledge organization and knowledge service of the world first-class subjects.