The authors analyze Pan Shu's outstanding contributions to psychology in China. As a founder of modern Chinese psychology, in his psychological career more than 60 years, Pan researched mainly on the basic theoretical problems of psychology. He put forward his own views about the nature of psychology, the methodology of psychology, the relations between mind and body, the categories of human psychological activities, consciousness, the subject matter of psychology, and how to develop a psychology with distinctive Chinese features. The authors point out that Pan was the only Chinese psychologist who set up his own psychological theory systematically, and that his theory of psychology has had important influence on the development of Chinese psychology.