The development of civil aircraft in China started late,and there were a lot of technical problems to be solved in the process of development, which affects the progress of project development. How to accurately and efficiently solve the technical problems, that is, how to select the best technical solution in the existing technical solutions, is the key factor to ensure the development progress and even the success of the whole civil aircraft project. Based on the analysis of the current situation of civil aircraft technology management, using the basic theory of project management, combined with the characteristics of civil aircraft development and related work experience of civil aircraft development technology management, the paper studies the technical decisionmaking method of civil aircraft, and comprehensively evaluates the technical scheme itself and stakeholders by using the technical scheme evaluation matrix. This paper summarizes a set of civil aircraft technology decisionmaking methods so as to provide reference for subsequent civil aircraft technology decisionmaking work.