Abstract: Based on the the field data of spring wheat and climate data covering the period from 1981 to 2010,correlation analysis and Stepwise regression method were used.The result showed that the wheat field was mainly determined by sunshine hours of filling stage,the temperature of sowing date and wind velocity of emergence stage which played a secondly role on the yield formation of wheat.An equation was elucidated by the meteorological factor and climatic yield.Test results showed that the precision was more than 90%.