中文摘要：

综合现有文献，结合欠发达地区城镇化发展实际，建立欠发达地区城镇化发展质量评价指标体系。通过联合主成分分析法、城镇信息距离理论与断裂点理论，以典型欠发达地区江西省为例进行城镇化发展质量测度实证研究后发现，江西省的城镇化发展不平衡，各地级市的城镇化质量可分为三个等级，且存在南北区域城镇化质量差距明显、城镇化质量与区域面积成反比、城镇化质量较低的区域缺乏驱动力等三个特征。相关指标显示，除生态环境外，各城市与中心城市南昌的城镇信息距离较大。

英文摘要：

By analyzing the existing literatures, this paper establishes an evaluation index system of the quality of urbanization in underdeveloped areas according to their realities. Taking Jiangxi Province as a typical case of underdeveloped area, it conducts an empirical study on the quality of urbanization development with the method of PCA, the UDIT theory and the breaking-point theory. The results show that the urbanization development in Jiangxi province is out of balance. The quality of urbanization in the prefectural-level cities can be divided into three grades with three characteris- tics, such as the obvious quality gap between the north and the south, the quality of urbanization be- ing inversely proportional to the regional area, and the regions with lower quality of urbanization lacking driving force. The relevant indicators show that the UDIT between Nanchang and the prefec- tural-level cities is bigger except the ecological environment.