By analysis of the forest fire occured in Hubei province from Jan.1987 to April 1990,a set of objective forecasting indexes of atmospheric circulation about fire weather are established.In addition,surface weather factor are used to calculate the index reflecting moisture content of fuels,and the level of forest fire danger can be forecasted.From Nov.1995 to Jan.1996,the experiment results showed that the forecasting method is a useful tool for forecasting forest fire weather.