"Library anxiety" is one of the mental obstacles that college students face when they use the libraries. Finding out the reasons why they fell anxiety, and based on the results to improve their learning allaying their anxieties, are one of the important university library research and practice topics. This research was based on self-made scale, took questionnaires of those NCCU students above sophomore, got 474 samples as shown in this research, students of different colleges, grades, the frequency of library use, and whether they attend the "freshmen library tour" show the significant differences of their anxieties. This research suggests that libraries should improve the studies on anxieties study, help readers to get familiar with libraries, and establish convenient and comfortable environment for readers. s.