Abstract: This paper analyzes the coupling and coordinated development of economy and ecological environment between 2003 and 2015 in Urumqi, then uses the radial basis function neural network model to simulate the internal structure of Urumqi eco-environment system and the nonlinear function between the elements. Finally, this paper calculates the contribution of each factor to the economic and ecological environment coupling development. Through the study, it found that economic and ecological environment in Urumqi are more closely related, and the correlation function presents the strengthening trend year by year. Overally, the coordination of economic and ecological environment has gradually improved. The contribution of the ecological environment system to coupling coordinated development is greater than the economic system, the elements in the process of coordinated development of economic and ecological environment play different role, for example, air quality, garbage disposal rate, passenger volume and other indicators contribute more. Finally, according to the research results, this paper puts forward corresponding suggestions.

Key words: Economy and Ecological Environment System, Coupling Coordination, Factor Contribution Degree