As R&D project termination decision is an important work of R&D project management,effective and timely termination decision has great significance for optimizing science and technology resource and improving innovation efficiency.Based on the brief analysis of the methods of R&D project termination decision,the paper discussed the discriminant analysis method of R&D project termination decision,and provided an example according to the essence of the R&D project termination decision.The result Showed the method was both simple and ef- fective.