Member innovation has always run through the whole process of scientific research team management. It is an important driving force to promote the national scientific and technological progress，but in the "Double First?class" construction background of the integration of outreach team member’s advantage combination is given less attention. Based on the theoretical perspective of advantages，the research team members are studied，and the combination mechanism of the advantages of the team members of the integrated outreach research and innovation team is constructed by combining the RepGrid method and the DEMATEL method. First，standing in the position of 95 samples to put forward the knowledge base，innovation ability，project experience and teamwork four dimensions of the integrated outreach team members innovative advantages，and then use the DEMATEL method to introduce the problem of innovative advantages of members of a car collaborative innovation center in Chongqing to analyze the problem. The results show as follows. Respecting the individual’s advantages，rallying the existing members，aggregating the group’s advantages，introducing external intelligence，exerting the combination advantage，exploring the sharing of talents，and realizing the goal of complementary advantages. In addition，it is instructive for the members of the scientific innovation team to differentiate their strengths and enhance their innovative relationship with each other.