Children's parks must be fun, safe, environmentally friendly and affordable in order to attract the eyes of many parents and make children forget. The business of children needs to be kept up to date in order to bring more wealth. The ph. D. Children's garden, which has been a good reputation for many years, can be successfully opened at a small cost and can operate quickly. Moreover, there is more support for entrepreneurship at headquarters and more economical. In order for children to grow up healthy and happy, doctoral children's playgrounds have turned their backs on traditions, giving priority to the creation of new ideas for play, a children's playground with a combination of the three-dimensional combination of science, which combines the functions of sport, sport, wisdom, fitness, etc. The doctoral children's park has not only novel features of entertainment, but also the creation of early teaching concepts, which are more trusted places for parents and children. The ph. D....