Twice. According to the announcement issued by official website, the Youth Fund of the National Natural Science Foundation of China will be allocated in two phases in 2022. The first year is 6,543.8+0.2 million, followed by 6,543.8+0.8 million, which is part of the direct fund application received in that year, and the rest will be received in the next year. During the implementation period, indirect funds are received separately every year.