Abstract: In this study,the meteorological data from 144 stations (1961-2009) and the related socio-economic data (2008-2010) were used to analyze the high temperature disaster risk in Jiangsu-Zhejiang-Shanghai (JZS) region from the points of disaster factors' hazard,sensitivity of disaster environment,vulnerability of bearing body and resistant capacity.The results show that hazard of high temperature disaster factors is high in the southern area of JZS region and is relatively low in the northern JZS,and the dangerous index is significantly larger in Zhejiang province than in Jiangsu province and Shanghai.The sensitivity of disaster environment (SDE) value is higher in northern and central areas of JZS,while it is lower in southern JZS.The maximum value of SDE is distributed in Jiangsu,Shanghai,and the plain and seashore areas in northern Zhejiang.For those important developed large cities in Yangtze River Delta,their bearing bodies of high temperature disaster are of the highest vulnerability.Regions with low vulnerability,sub-low vulnerability or moderate vulnerability are distributed in northern Jiangsu and southern Zhejiang where it is relatively undeveloped.The regions with the strongest resistant capacity are distributed in the surrounding areas of Shanghai,Nanjing and Hangzhou,and the homologous risks in these areas are relatively low.The integrated risk of high temperature disaster in JZS region is high in central and southern JZS while is relatively low in northern JZS.The highest-risk and sub-highest-risk areas are distributed in Zhejiang,Shanghai and southern Jiangsu,and the low-risk and sub-low-risk areas are mostly distributed in the areas north to the Yangtze River and the coastal areas of Zhejiang province.