Monitoring can effectively understand the status and trend of natural protected areas and help the management of protected areas.By sorting out the monitoring status of natural protected areas,this paper analyzed the necessity of monitoring urban natural protected areas,and combined urban character-istics to analyze the monitoring difficulties such as complex spatial structure,frequent interference from human activities,complicated monitoring content,and shortcomings in data integration.Based on the perspective of natural resource inventory,spatio-temporal big data,classification and zoning,public par-ticipation,the monitoring path of urban natural protected areas was considered.