Abstract: Taking Chongqing City as a case study,the data for key factors of agro-climatic resources in the different counties of Chongqing was collected and simulated,by using the multi-regression analysis and spatial interpolation in GIS.The grade evaluation of agro-climatic resources was made with the integrated assessment method.The results indicated that there were not significant differences on the integrated satisfaction degree of agro-climatic resources among different counties in Chongqing,but the matching of the individual factor of agro-climatic resources was not good.The results would provide a basis for the agricultural planning in utilization of agro-climatic resources.

Key words: Agro-climatic resources, Agro-climatic resources, Chongqing, Grade evaluation