Abstract: The author considers that the main cause of environments worsened year by year, according to the author's survey and investigation in the arid regions,is the people's unrational behavior and activity. Therefore, to rationalize the population distribution and to standardize the people's behavior and activity are necessary. For this reason, the suggestion using the urbanization to drive the ecologilization is put forward in developing Northwest China. In this way, it could be unified the benefits among environment, economy and society, and to guarantee the environmental construction and economic development in the future. The author has recommended the Australian practice to be used for reference in the Northwestern China and to suggest that two regions, the plain region of northern foot of Tianshan Mountain in Xinjiang and the Ningxia Hui Autonomous Region could be listed as the priority region for experiment.