With the global warming, the gradual increase in urban heat island effect, summer tourism is the most urgent needs of the summer travel. This paper currently our country summer tourism resources as the foundation, studies and discusses the spatial suitability distribution of summer tourism base construction. The research by UTCI climate comfort index and GIS spatial analysis method and AHP analytic hierarchy process(AHP)based, with GIS spatial analysis technique of multivariate data modeling processing, weighting to obtain the tourism climate comfortable degree index, in order to build the national A- level scenic spot core center, service industry around radius, to build a comprehensive a number of industrial chain elements, tourism environment comfortable, at home and abroad has an influence on the comprehensive summer tourism base. The findings are as follows. The spatial distribution of China's summer tourism resources exhibits a double-peak characteristic, with concentrations in the mid- and high- latitude and high- altitude regions. Second, the specific spatial distribution included areas surrounding the Qinghai-Tibet Plateau and Liaodong Peninsula and coastal areas of Shandong Peninsula and the part of in southwest China. The Liaodong Peninsula and coastal areas of the Shandong Peninsula is the most ideal summer tourism destinations. The second largest concentration of suitable summer tourism destinations is found in the southwestern mountains and plateaus, with Guiyang and Kunming as the core and including their peripheral areas. Next is the northeastern mountains and plains, comprising Shenyang, Jilin and their peripheral areas. Fourth largest is the central region of the northwest, with Xining and Lanzhou as the central axis and radiating in a north-south direction.