"Undergraduate-oriented" has become the basic principle for the development of higher education in the new era. This paper analyzes the connotation of "Undergraduate-oriented" and the service innovation trend of university library driven. Based on "Undergraduate-oriented", the paper puts forward the service innovation strategy of university libraries, which mainly include: take the moral education service of undergraduates as the core goal, the practical education service of undergraduates as the basic engineering, the scientific research service of undergraduates as the cutting-edge layout, and the construction of undergraduate education resources as the supporting conditions.