Abstract: The evaluation of urbanization quality plays an important role in guiding China’s urbanization construction. This paper takes Jiangsu province as the case and provincial cities as the evaluation units, then constructs a comprehensive evaluation system for Jiangsu’s urbanization quality in two aspects which are developing level and developing efficiency. Based on the data of 13 provincial cities including 2000, 2005, 2010, 2015, this paper adopts entropy method to calculate the indicators’ weights, and uses comprehensive evaluation method to measure the urbanization quality and their subsystems, then analyses the spatio-temporal difference of the evaluation results, finally provides classified guidelines for the cities according to the weaknesses of their urbanization development. Results show that the developing quality, the developing level and the developing efficiency of Jiangsu’s urbanization increase a lot in the last 16 years, while the regional difference is also obvious and the incoordinate problems are extending. Factors that lead the development of economic and social urbanization are the primary driving factors which affect the urbanization developing level, and the factors that lead the development of urban-rural integration are the primary driving factors which affect the urbanization developing efficiency. Therefore, each city has their own “short board” in development process, figuring out their primary difficulty is necessary.