“Library of Chinese Proficiency Test Center” collects academic works written by 12 teachers of Chinese Proficiency Test Center, Beijing Language and Culture University. It collects the writers’ published papers on language testing and other related fields, as well as some latest research findings. This is one of the 12 books of the series. The collected 16 papers are divided into the following two aspects: (1) information management of the test; (2) statistics-based quality control of the test.