Children’s welfare is an important part in the area of people’s livelihood and well-being in China, and is also the focus of the field of preschool education and social development in various countries. Optimizing the development of children’s welfare is an effective strategy to solve the low fertility rate dilemma, the problem of “no care for children” and promote the coordinated development of society and economy. German child welfare system developed rather early, and the system was relatively perfect. Its pioneering experience in different forms of child welfare payment, full provision of parenting time and active childcare services can provide useful reference and inspiration for China to explore the construction of child welfare. The joint construction of China’s modern child welfare service system includes three aspects: financial support, social participation and public opinion support. They can effectively alleviate the time cost and mental pressure of childbearing-age parents, reduce the burden of child-rearing, and achieve the purpose of improving people’s willingness to have children. Based on the aspects of government, enterprises, society and family, this paper puts forward feasible ideas and suggestions, and tries to promote the formation of a favorable situation of “jointly facilitating balanced population growth, realizing the synchronous and coordinated development of child welfare and economic society”.