Traditional library acquisition lies mainly on librarians’ favor or readers’ feedback,which leads to some severe problems. Thus,an improved mode of library acquisition is designed to increase the circulation of books. Then,based on an analysis of the circulation data of Nanjing Forest Police College Library from January 2013 to June 2017,the pattern of readers’ borrowing is summarized,and the effectiveness of the improved library acquisition mode is verified. In short, the improved library acquisition mode could help university libraries to better meet the needs of readers and to improve their service.