In dense urban cities, many children are cut off from nature, despite the opportunities for learning and exploration that nature provides to the child and its positive impact on the development of the child's skills and fulfill his needs and well-being. Children's playgrounds can be an opportunity to reconnect and experience directly with nature; As the child has an innate biological tendency known as "Biophilia or love of nature". Therefore, this study aims to investigate the attributes and patterns of "Biophilic design" that are appropriate to be implemented in the design of children's playgrounds, and to find practical ideas for these patterns to be applied in the design of children's playgrounds, with safety standards of the CPSC and thus improving the design of children's playgrounds.