The course in Frontiers and Applications of Psychiatric Epidemiology aims to explore the complexity of mental health and psychiatric disorders, delving into their distribution, evolution, and impact on individuals within social populations. Students will gain a profound understanding of the definitions within the mental health field, learn various assessment methods, and acquire advanced epidemiological techniques applicable to psychiatric research. The curriculum covers the intricate influence of multiple factors such as social, psychological, genetic, and environmental aspects on mental health, emphasizing the intricate interplay between social environments, psychological factors, and the complex interaction between genetics and the environment. Throughout the course, students will develop the epidemiological methods and data analysis skills required for researching mental health issues, providing a solid theoretical and practical foundation for future in-depth study and practice in this field. Additionally, the course addresses current challenges in mental health policies and practices, fostering innovative capabilities in students to address evolving mental health needs in society. Through participation in real case studies and team projects, students will cultivate the ability to solve practical problems from an interdisciplinary perspective, contributing to the advancement of the field of mental health.