Professor Ping Li is the chairman of Psychiatry Branch of Chinese Medical Association and Mental Health Branch of Chinese Preventive Medicine Association. Indications are insomnia, headache, dizziness, depression, anxiety, neurosis, schizophrenia, mania, neurasthenia, obsessive-compulsive disorder, phobia, autism and other nervous system diseases, especially good at early intervention and anti-recurrence treatment of intractable insomnia, severe depression and schizophrenia. Engaged in clinical work in neurology, psychosis and psychological disorders for more than 30 years. With rich clinical experience and solid basic theory, he has been the special lecture of municipal and national continuing education projects all the year round, and is responsible for guiding many scientific research projects such as the national "Eleventh Five-Year Plan" science and technology support project "Early Intervention and Anti-relapse Treatment of Schizophrenia". In the three years from 2009 to now, in order to explore the epidemic characteristics of mental diseases such as insomnia, depression and schizophrenia, Professor Li led relevant mental health workers to overcome various difficulties and conducted a relatively arduous comprehensive epidemiological survey of mental diseases in Guangzhou, in order to obtain the epidemic situation of various mental diseases, and then formulate corresponding mental health policies, making efforts and contributions to promoting people's mental health.