Based on case study and questionnaire survey,this paper measures the loss of wheat after harvest in Henan province,and makes questionnaire survey from over 900 wheat-planting farmers.The result shows that the loss rate of the wheat after harvest is about 2.1%,and postpartum harvest link loss rate was 1.6%,which is significantly higher than that of transportation,drying,storage and other links.The best harvest time of wheat and choice of good quality harvesting machinery have a significant effect on reducing the loss of wheat.In recent years,with the improvement of storage and diversification of storage,the loss rate of wheat is significantly decreased.Finally,this paper puts forward three suggestions from the improvement of harvest machinery,expansion of service supply and spreading of scientific grain storage.