The purpose of funding the Youth Fund project before is: "The Youth Science Fund is the starting fund for young researchers interested in basic research. Its positioning is to stabilize the youth team, train successors, support independent scientific research, stimulate innovative thinking, continuously improve the innovative research ability of young talents, and promote the growth of young researchers. " Now it is revised as "Youth Science Fund supports young researchers to choose their own topics, encourages independent basic scientific research, cultivates innovative scientific research ability and promotes the growth of young researchers."