Cities along the Western Long Hai-Lan Xin Economic Zone are key regions during the great development of west China,while the development of these cities is seriously restricted by the shortage of water resources.So urban water resources utilization and shortage in the Western Long Hai-Lan Xin Economic Zone are analyzed.It is considered that most of those cities are short of water resources,yet many water resources are wasted.Restricted by water resources,the urbanization level of the Western Long Hai-Lan Xin Economic Zone is much lower than that of east China,and also lower than that of the whole country.But it is higher than that of west China,and much higher than that of Northwest China.The gross expansion is the main comprehensive characteristic of the urban expansion.The input and output benefit of water resources and land resources is very low.The development of those cities mainly depends on resources exploitation,so the quality of the urban expansion should be quickly improved.In the next20years,also restricted by the shortage of water resources,the speed of the urban expansion will become slow,and the extent of the urban expansion will be very small.The urban non-agricultural population will increase6310000.The urbanization level will increase7.21%and reach35.97%.The megalopolis along the Western Long Hai-Lan Xin Economic Zone still include Xi ’an,Lanzhou and Urumqi.Baoji,Xianyang,Tongchuan,Tianshui,Shihezi and Korle will become metropolises.The quantity of middle scale cities will become 14in2020instead of10in2000.The quantity of small scale cities will decrease.In order to realize the ordinal urban expansion along the Western Long Hai-Lan Xin Economic Zone,it is suggested that human should be taken as the foundation,water resources should be taken as the lifeline and urban planning should be taken as the legal base during the city construction.