1. The National Natural Science Foundation of China, established at the beginning of 1 1986, is responsible for organizing, implementing and managing the projects of the National Natural Science Foundation, and subsidizing basic research and applied research for the whole country according to the principles, policies and plans of national science and technology development and the direction of science and technology development. The funds mainly come from the national financial allocation. 1. The general project is the main part of the funding system of the National Natural Science Foundation, including three sub-categories: free application, youth science fund and regional science fund. 2. Key Projects Key projects are another important level in the funding system of the National Natural Science Foundation, which mainly supports scientific and technological workers to grasp the world scientific frontier in combination with national needs. Carry out in-depth and systematic innovative research on important research fields or new disciplines with good foundation and accumulation in China. 3. The talent program is another important part of the funding pattern of the Natural Science Foundation, which is mainly composed of the National Science Fund for Outstanding Young Scholars (including foreigners), the Overseas Young Scholars Cooperative Research Fund, the Hong Kong and Macao Young Scholars Cooperative Research Fund, the Innovative Research Group Science Fund and the National Basic Science Talent Training Fund. Including: National Outstanding Youth Fund, National Outstanding Youth Fund (overseas) overseas young scholars cooperative research fund, Hong Kong and Macao young scholars cooperative research fund, innovative research group science fund, national basic science talent training fund, 4. 5 international (regional) cooperation and exchange projects. Co-funded fund project Co-funded fund is a natural science fund, which aims to promote the integration of Industry-University-Research and guide other government departments or industries to invest funds in areas or directions of common concern to support basic research and applied basic research. 6. Special projects Special projects are special projects established by the Natural Science Foundation to support or strengthen a certain field or aspect. At present, there are two categories, namely, Mathematics Tianyuan Fund and Special Fund for Basic Research of Scientific Instruments. Among them, the projects of Mathematics Tianyuan Fund do not participate in the limited search of various projects, and the Special Fund for Basic Research of Scientific Instruments is included in the limited search scope of key projects. See/view/1314657.htm for details.