Abstract: Establishing the evaluation system on subject librarians ＇services in university library has played a decisive role in promoting the scientific, standardization management of library. This paper analyzes the real problem, the basic principle and the key and difficult points about the construction of the evaluation system of subject li-brarians＇ services. On this basis, it puts forward the construction of the evaluation system of subject librarians ＇services from three aspects of service support, service ability and service performance.

Key words: university library; subject librarian; service evaluation system