Seen from the view of sustainable development of lands, the land utilization in Gansu province during urbanization has a few issues: a rapid demand for construction land, a big per capita land area, low land utilization and production, unbalanced urban land spatial structure, unfair land benefit. This paper, aiming to ensure a sustainable utilization of urban lands, presents some suggestions: scientific planning, optimizing land allocation based on markets, keeping balanced regional land quantities, and optimizing land environment.