This book is a collection of 26 HSK (Revised) study papers provided by Chinese Proficiency Test (HSK) Center in Beijing Language and Culture University. The papers broadly and systematically discuss the HSK Revised and are categorized into 5 subjects, namely: Test Theory and General Design, Studies of Item Types and Scoring, Studies on Comparison of HSK and HSK (Revised), Studies on Test Quality of HSK (Revised), and Studies on Data Processing and Management in Test Administration. The papers collected in this book research. With high academic level and directive significance in practical work of Chinese proficiency test, this book is recommended to the readers.