How to improve the city innovation ability to consummate and develop the city function and strengthen the city competitive ability is the requirement for the rising of middle part and also the key of the rising of central China.

The paper views that urbanization is not only changing process of population and landscape and also is the creation of process of urban innovation function.

A Study on the Strategies of Constructing a High-tech Innovative City——With Chengdu as An Example;

By analysing the importance of city economy in regional economic′ development, this paper points out the necessity of city innovation, and it also puts forward the basic theory frame of city innovation aiming at improving the city competence and promoting the sustainable development of the regional economy.

City Innovation, a part of Regional Innovation, has the character of denseness, high effective and diversificat.

This thesis has analysed the competitiveness index based on Ni Pengfei s model, and some useful strategies on the urban innovation are presented to enhance the urban competitiveness which focuses on the urban innovation.

Based on revealing the meaning of urban innovation in the background of knowledge economics, this article studies the effects and characters of urban innovation, then raises suggestions on how to make urban innovation.