Digital therapeutics is an emerging concept and technology in healthcare digitization. In recent years, it has been gradually applied to the prevention, treatment and management of mental disorders, providing precise mental health services for different populations. This article reviews the current application status of digital therapeutics in mental health, and analyzes its limitations, challenges and development trends. Future research needs to further validate the clinical application of digital therapeutics, optimize data management, enhance privacy protection, and establish a sound regulatory system to promote the healthy development of digital therapeutics in the field of mental health.