The development of children's day care service is conducive to solving the difficult choice between dual-employee family work and children, reducing the pressure of novice parents and reducing the contradiction and conflict between mother-in-law and daughter-in-law brought about by intergenerational parenting. These benefits of child day care are also the reasons why more families choose to send their children to day care centers. In addition, compared with nanny rearing, day care centers are more professional, more secure and more cost-effective, which is why more families tend to take care of their children. Parents in first-and second-tier cities are more eager for superior nursery education resources, so the market development potential of children's day care is great, and the prospect of joining day care is broad.