Abstract: To speed up the building of high-level public health professionals' educational system is the requirement of the national medical education innovative development. The "trinity" mode of Capital Medical University has formed multiple characteristics of public health professional's educational system, such as collaborative mechanism, quality cultivation, "four-certificate-in-one" application-oriented training, international vision and comprehensive quality improvement. This mode has been continuously improved in combination with the needs of capital and even national strategy to explore the innovative development pathway.

Key words: trinity, collaborative mechanism, innovative development, public health professionals