This paper analyzes the current situation of professional degree graduate education in China, summarizes the main problems existing in the construction of tutor team at the present stage, and constructs the "honeycomb model" of civil engineering master's degree graduate training. The "honeycomb model" replaces the double mentors with the mentor team, and takes the cultivation of practical innovation ability as the goal. Demand-oriented, it establishes substantive connections between the multiple agents represented by the mentor team members. In addition, the "honeycomb model" promotes the mutual promotion and integration of multiple entities through cost-effectiveness, and realizes the sustainable development of multiple entities through win-win cooperation. Finally, the model relies on the project matrix operation mode to promote the construction of tutor team and realize the unification of academic and professional graduate training.