The stepwise regression analysis was carried out between the death toll in emergency cases and meteorological factors in Alaty of Xinjiang Province. The results show that there is good correlation between monthly/seasonal death toll and mean temperature,maximum temperature,minimum temperature,mean pressure,sunshine duration. The meteorological factor having the greatest influence on the monthly death toll of cerebral blood diseases is pressure (positive correlation),and that on breathe system diseases is temperature (negative correlation). For all the equations,it is shown that in winter,there is negative correlation between death toll and temperature,and positive correlation between death toll and pressure;in summer,there is positive correlation between death toll and temperature,and negative correlation between death toll and pressure. It means that the death toll is relatively high in the winter with low temperature and high pressure,and in the summer with high temperature and low pressure.