The study of “production, living and ecological space” plays a significant role in optimizing national land layout, advancing ecological construction, and achieving sustainable development. Taking the central city of Lanzhou as the research object, based on POI(point of interest) data, grid division, sample square statistics, AHP(analytic hierarchy process) hierarchical analysis and GIS(geographic information system) spatial analysis techniques were used to identify and characterize the production, living and ecological spaces. The results show that the production space is concentrated in the periphery, the living space is clustered in the core area, and the ecological space is distributed in a decentralized manner.The quantity is dominated by the production and living space, the ecological space accounts for the smallest proportion, and there are very few mixed-function zones,and the four types of space all show obvious clustering characteristics. The study shows that POI data are scientific and practical in spatial identification and can provide reference for urban territorial spatial planning.

POI(point of interest)  /  production, living and ecological space  /  central urban area  /  grid recognition  /  spatial pattern