Abstract: Urbanization development is the main contributing factor to regional climate change. Based on the Landsat TM image data, multiperiod land use status data, urbanization rate, DEM data and meteorological spatiotemporal data, this paper firstly constructs the urban development index and the temperature change index, then visualizes this two indexes of the Three Gorges Reservoir Area (Chongqing section) by Geoinfo Spectrum method, finally establishes the temperature change model responding to the urbanization development by the simple linear regression model. The research results show that: (1) Urban Constructive Land of study Area has increased 3.83 times, the annual growth rate of urbanization development index is 4.56%, and the spatial pattern is southwest high and northeast low;（2）The temperature change index increased rapidly in the late 1990s, and it remained a high index state from 2005 to 2014,but water storage in the reservoir area has little effect on the temperature change index; (3) From the view of the Geoinfo Spectrum of temperature response sequence and pattern corresponding to urbanization development, two indexes show a strong positive correlation and have a better goodness of fit. The t probability value (P value) in most districts and counties reaches a significant level of 0.05. Furthermore, the change of the material environment of underlying surface and the increase of human activities in the reservoir area directly influence the longterm changes of the regional temperature.