Sports lottery public welfare fund is a part of the funds obtained from sports lottery sales, which is used to support the development of social welfare undertakings and sports undertakings. In terms of social welfare, the public welfare fund can be used for projects in the fields of education, medical care, poverty alleviation, environmental protection, culture and art, and social welfare. These funds can be used to improve educational facilities, provide medical assistance, support the development of poor areas, protect the natural environment and promote cultural and artistic exchanges. In sports, the public welfare fund can be used for the construction of sports facilities, the training of athletes, the organization of sports competitions and the popularization of sports. These funds can be used to build stadiums, provide professional training and support the organization and publicity of sports events.