Abstract: The study was conducted to improve the meteorological forecast precision and to reduce false forecast ratio and missing forecast ratio for forest fire risk in Fujian.According to the meteorological data of 67 weather stations from 1980 to 2006 in Fujian,indexes of forest fire risk were calculated by the meteorological grade forecast model.Therefore,the fine forecast for forest fire risk was done.The result showed that(1) the risk ratio of forest fire had power function relation with diurnal temperature range and daily evaporation,while exponential function relation with minimum daily relative humidity and precipitation.(2)The forecast model revised could improve the spatial precision of forecast results.

Key words: Forest fire risk, Meteorological grade, Fine forecast