1. Shape design The shape design of the children’s water playground should first be visually lively, close to nature, and close to life, and the appearance of the shape should be vivid and expressive. Secondly, it is best to choose animals and plants in the natural ecology in terms of styling. For younger children, it can improve the cognition of the thing, and at the same time it is helpful to exercise the children’s observation ability. Third, the integration of ever-changing patterns in the modeling can satisfy children’s imagination of the whole thing. Adding more patterns on the basis of the bionic shape, through the changing shape and abstract patterns will attract children’s attention, in line with children’s willingness to explore the psychology. Fourth, the shape of children’s playground equipment is full of fun, can attract children’s attention, and conform to the characteristics of children’s psychological development.