Handwriting is a complex， automatic and unique human activity. The completion of normal writing behavior is a manifestation of personal physical and mental health. With the development of modern science and the application of digital technology， a large amount of evidence has showed that new techniques of handwriting analysis is helpful to detect and assess the movement， cognitive， and emotional disorders of patients with various mental disorders. This paper reviews the research methods， results and Enlightenment of handwriting analysis of patients with various mental disorders published in recent years at home and abroad， and summarizes the application of new techniques of handwriting analysis in psychiatry.