The development of Internet and information technology provides a great opportunity for library's digital information resource building. It has become a chief problem in the course of digital library building that readers can search digital collections conveniently and quickly by the powerful search engines through the library's Web site. Jilin University Library builds its Web site and databases based on TRS (Text Retrieval System), which has become a core technology during its Web site building and development. This article briefly introduces the process, experience and achievement of our library Web site building using TRS.