"A Family with Children" tells the story of the growth of three friends from three families in the same community. Tang Xiaolong and his cousin Donna are both "hermit crabs" who were fostered by their parents at their grandparents' house; Li Beibei lives in a single-parent family with a strict but crying mother; Ma Da's family has good financial conditions, but his parents are too busy to take care of him. Three friends, Tang Xiaolong, Li Beibei, and Ma Da, formed the "Iron Triangle" to deal with parents, hide the truth from teachers, and give class monitor Shi Lanlan a headache. They also brought junior high school student Donna into their small gang, and even Donna's good friend Lin Qingqing, the "magician" sister who lives in the same community, also gave them advice from time to time. There is a "Family with Children Club" in the community, and the school's teacher Anyuan works as a volunteer tutor in the club. His educational method of entertaining and entertaining is the most popular among children. This is not only a paradise for children, but also a good place for teachers and parents to exchange educational experiences. Therefore, many wonderful stories happen in the "Family with Children Club".