Abstract: Molecular biology has become the most basic, important and frontier main course in life science, but its teaching mode still uses the traditional teaching way and is lack of innovation. This article introduces the status of the module teaching system in molecular biology and its application. The constructed ideas and reformation contents are elucidated. The course content is divided into four modules，these are " genetic information transmission, molecular biological technology, gene expression and regulation, application and development of molecular biology ". The corresponding experimental teaching is divided into "basic, comprehensive and design, innovative " experiment module. The practicing experiences and preliminary effects in the implementation process are summarized and the future of module teaching reform are also discussed as well.

Key words: molecular biology, module teaching