The basic characteristics and different background characteristics of wet heat high temperature and dry heat high temperature weather in Jinshan from 1981 to 2010 are studied.The impacts of high temperature on the people〖DK〗’s life and work are studied with the human body comfort index.The results indicate: (1) The dry heat high temperature weather is controlled by strong subtropical high at upper levels, and the surface is usually in the clear area before or after a high pressure system; the wet heat high temperature weather is controlled by the less strong subtropical high, and the surface is mostly at the bottom of a low pressure, leading to invasion of moisture. (2) During the years of dry heat high temperature, the West Pacific high is found to be more westward and strengthened, and the South Asia high lies more easterly and northerly, with stronger summer monsoon and stronger descending motion. (3) During the years of wet heat high temperature, ascending motion exists below 900 hPa in latitudinal direction, which is favorable to the development of convective activities.Two types of high temperature show the characteristic of persistent discomfort all day long. (4) During the daytime, the wet heat high temperature has longer duration of extreme high temperature and greater body discomfortibility, while during the nighttime the dry heat high temperature weather has greater body discomfort.