According to the requirements of training simulator evaluation function and research experiences, the design of four grating modes such as theory examination, operation training grating, complex training task grating and assistant evaluation are discussed respectively. And a training grating process is proposed. The applications of data collecting, expert system and integrated ambiguity evaluation method in the design of training simulator evaluation system play a very important role. Research emphasis should be improving intelligence and flexibility so as to adapt to the internet training of complex and large simulators or multi-simulators in the future.