Abstract: As one of the most high quality raw material for biodiesel,Jatropha curcas has the natural advantages such as outstanding potential on economic and ecology,but their growth depended on meteorological conditions strongly.To avoid introduce blindly,the authors adopted the agro meteorological analysis and geographic information system (GIS) technology,achieved climatic suitability division for Jatropha curcas,which based on observed meteorological data of 85 stations in Guizhou from 1961 to 2009,and combined with the data of field observation.According to the annual temperature (Tmean),>10℃ accumulated temperature (∑T）,sunshine hours (H),extreme minimum temperature(Tmin)and the average temperature in the coldest month（Tcold）,the regionalization standard of the climate suitability of Jatropha curcas was established in Guizhou.Based on GIS spatial analysis function,refinement climatic division which was under grid interval of 100m×100m and accurated to villages (towns) in Guizhou was finished.Jatropha curcas planting distribution,including suitable area,sub suitable area and unsuitable area,was developped.The suitable area of Jatropha curcas was mainly located in south and north Pan River,the sub suitable area was mainly distributed in the subtropical area of Guizhou,and the unsuitable area mainly focused on the central and northern Guizhou.The results could provide the scientific evidence for Jatropha curcas on work safety layout.

Key words: Guizhou province, Jatropha curcas, Climate adaptability, Division indices, GIS