Abstract: In order to evaluate meteorological service benefit to crops accurately and improve the capacity of agricultural disaster prevention and reduction,authors analyzed meteorological service benefit of all production sectors for crops,based on the assessment model of the contribution rate of meteorological service benefit by using the Delphi method,choosing three representative towns in Shangqiu city,Henan province as the assessment units.The results showed that the contribution rate of meteorological service benefit to crops was 6.9% in all of the three towns,in which the contribution rate of meteorological service benefit to economy crops production in the protected field was 8.7%,and the contribution rate of meteorological service benefit to the food crops was 5.8%.Moreover,meteorological service benefit showed peak effect during jointing stage and filling stage for food crops,which reached 1.67% and 1.73% respectively,occupying 59% of meteorological service gross benefit in the whole production sectors.The meteorological service benefit of economy crops in protected field showed peak effect during vegetative stage and reproductive growth stage,which reached 33% and 36% respectively,occupying 69% of meteorological service gross benefit in the whole production sectors.

Key words: Meteorological service benefit, Contribution rate, Crops