[Objective] To analyze the land consolidation regionalization, an important content of land consolidation planning, in order to provide basis for determining the key regional land consolidation and land consolidation planning.[Methods] We took Lanzhou City, Gansu Province, an ecological fragile area in Northwest China, as the research area. With the consideration of regional natural geographic features, land use characteristics and major regional ecological problems, a preliminary dividing index systems including terrain, rainfall, soil type, vegetation type, water loss and soil erosion was constructed. The established index systems were further improved based on regional water resource supply, water resource distribution and administrative divisions. ArcGIS spatial overlay analysis function was used.[Results] A two level regionalization system that named by the "orientation+landscape+land use type" was established, and the second level is more detailed. Lanzhou City was divided into 7 zones and 15 sub-zones.[Conclusion] The reasonable indicator systems should be selected for land remediation in the process of comprehensive land consolidation in Northwest China, and the characteristics of land resources, water resources and ecological environment conditions should also be considered for the different zones in the perspective of ecological protection.