In recent years，China Welfare Lottery has been continuously investing in child welfare，and has carried out various welfare projects. These projects have provided strong financial support for the development of children’s welfare in China. Most of orphans and the distressed children get help. This paper analyzes several representative cases，sorts out the specific practices of China Welfare Lottery in building a child protection network，improving the child welfare protection mechanism，protecting the legitimate rights and interests of children，and proposes to increase the amount of public welfare funds，iIncrease the intensity of purchasing services.