The article takes the Lion Forest Garden as the research object, combs the characteristics and protection process of the rockery; this article conducts on-site investigation and analysis from the spatial features, environmental factors, and safety facilities, and concludes that the children are in the process of visiting the mountains. There are certain hidden dangers in safety, so this article takes the safety protection of children in the rockery as the starting point and builds the idea of preventive heritage protection by establishing a safety evaluation index system and improving the safety facility management system.