Abstract：The fast development of urbanization has produced a huge economic benefits, however it has also begotten a series of negative social problems, the so-called urban diseases such as population expansion, resource shortage and environmental pollution etc., which have severely the healthy and sustainable development of urbanization. The worsening situation of urban disease is actually a definite manifestation of balance loss between urban social economy and its environment carrying capacity. Therefore an inevitable option for us to choose is none other than an eco-economic city for achieving both a healthy urban city and coordinated development between mankind and nature, among mankind themselves and between the urban and rural.