中文摘要：

不同城市由于其所在地区的政治、经济、历史、地理等因素存在差异，草原城镇因受“择水而居、逐草而牧”的生产生活方式和宗教因素影响，城市空间形态演变具有独特的地域性特征。论文针对草原城镇空间形态研究相对缺乏的现状，选取锡林郭勒盟较为典型的草原城镇——多伦诺尔为研究对象，阐述其城市空间形态演变的历程、特征及影响因素，探索草原城镇空间形态演变基本规律，为优化草原城镇空间布局，引导内蒙古草原城镇可持续发展提供优秀个案。

英文摘要：

There are differences between different cities because of their local politics, economy, history and religious factors. The evolution of prairie towns＇ spatial morphology enjoys unique regional characteristic due to the life style of ＂Live near the water and graze with the grass＂ as well as the religious factors. Aiming at the current situation that there is a lack of spatial morphology researches of prairie towns, this thesis chose Duolun Nut Town. the typical town in Xilinguole Steppe, as the research object and expounded its evolution course, feature and influential factors, thus exploring the basic principle of special form transformation of prairie towns. It will provide an excellent case for optimizing the spatial arrangement of the prairie towns and lead the sustainable development of the prairie towns in Inner Mongolia.