The elimination rate of Zhejiang Natural Fund is 50%. Natural science fund refers to the fund projects established by various countries to encourage the innovation and development of natural science. Famous ones are National Natural Science Foundation of China, National Science Foundation of the United States, Irish Science Foundation, Czech Science Foundation, European Science Foundation, etc. In China, it generally refers to the National Natural Science Foundation. In addition, provinces and regions often set up natural science funds at corresponding levels. 1986 The National Natural Science Foundation Committee, established in early 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.