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939189710@qq.com Abstract: At present, when resources are limited, in order to make more efficient use of resources, we need to prioritize the primary sustainable development goals according to the characteristics of different cities .With the rapid development of urbanization and urban economy in China, cities are experiencing the rapid expansion of the scale of space. Therefore, how to choose a reasonable urban spatial expansion strategy in the process of rapid urbanization makes it not particularly affect the urban social and economic development and environmental development, but also to achieve the full use of land is particularly urgent, In order to achieve sustainable development planning goals, many cities are implementing smart growth plans. We use the 3E’s objective of sustainable development as the basis for analysis. We select two cities as the research object, we propose the corresponding solution according to the 3E’s target, Consider the characteristics of different urban development, We set up a model, and finally in accordance with the priorities of different measures to develop a more efficient development plan, in this way, we can provides a simple idea for the city to build a smart construction.

Develop the Primary Direction Based on the 3E's of Sustainability For Different Cities' Smart Growth