Under normal circumstances, most of the project review opinions that will not hold a meeting are that three projects will not be funded. If a project is judged by three experts not to be funded, there are basically many problems. For individual projects, the online evaluation opinion is Grade C, but if two well-known scholars independently put forward reconsideration opinions, they can also enter the evaluation meeting. This kind of project is called non-knowledge project.

The evaluation experts of the National Natural Science Foundation of China are produced from the winners of the National Natural Science Foundation, among which the leaders of major and key projects are selected experts, Xie Qing is also a required expert, and the general project leaders are selected experts.