Abstract: All kinds of innovative groups play an increasingly important role in economic，social and technological development and the Group innovation mechanism has also become an important research issue. Cognitive neuroscience，after years of development，has achieved rich research results，providing basic theory and new perspectives to research and develop community innovation mechanisms. This article selected topics contributed to the source of the literature from the management，neuroscience and psychology of the relevant journals，through literature research and theoretical analysis，mainly from the four dimensions of the group innovation mechanism. It is found that group cooperation is essentially derived from brain mechanism, and opens up the black box of brain mechanism behind the mechanism of group innovation process, explains the analytical thinking mechanism in the process of progressive innovation and the insight thinking mechanism in the process of breakthrough innovation, revealing the neural mechanism of the transformational and ethical leadership mechanism in group innovation, and the cultivation mechanism of the group's innovative emotional atmosphere and trust atmosphere. In the future，interdisciplinary research will provide a promising model that combine theory and method of cognitive neuroscience and the theory and practice of innovation management to achieve a breakthrough in the development of group innovation research.