The topic of land and how to use it have always been the main topic of the urban planning and the space-place assessment and organizing of the efficient and urban performances is one of the most important and most effective axis urban Sustainable Development. The aim of the performance of this reseach is the quality and quantity assessment of the urban land use with constant Sustainable Development in Piranshahr. The manner of this research is analytic descriptive. To this purpose, there indicators of capacity compatibility and social justice have been used to achieve the sustainable development. In the first stage, it is paid to the quantitative assessment of existing uses and capacity index analysis, in the second stage it is paid to the qualitative assessment of use in view point of compatibility by using compatibility matrix and analysis of social justice index with the model of the nearest neighbor and swot model. The results of the quality and quantity analysis show that often efficient face with lack. This lack equals with 175.5 hectar. Also the most extent of Inconsistency is in the Usage Industry, Administrative, Residential and educational. This situation is expressive of the lack of the balance and disharmonious between the efficient that was caused by the urban planners lack enough attention. So it is essential to fit the environmental balance and economic and cultural of the urban Sustainable Development in the planning process.