This study analyzed the occurrence of insect pests and diseases of plants in Guangzhou Children’s Park from May 2017 to December 2019, which investigating every month, recording species，occurrence time, harm position, and degree. The results showed that 38 pests and 9 diseases were found in the park in the last three years, including 14 leaf-eating pests, 25 sucking pests, 2 borer pests, 8 fungal infections, and 1 virus disease. By analyzing the occurrence characteristics of diseases and insect pests in Guangzhou Children’s Park, the effect of green comprehensive prevention and control measures is summarizing to improve the ecological and social benefits of the special children’s park system.