The children’s playground is not necessarily a flat, completely flat land. The existing terrain, plants and infrastructure of the children’s playground are fully utilized and improved. If conditions permit, terrain and other structures can be used to create novel children's play spaces. In addition to traditional amusement facilities such as swings, seesaws, and slides, it is also possible to use old tires and rollers as equipment for children's games based on the use of terrain, which not only reduces the cost of the playground, but also can give full play to Children’s creativity and imagination.