Taking the wheat,Yumai 9023, as a research object, the effects of both drying methods, drying with heat pump and fluidized bed designed by ourselves and drying by thin layer hot-air method, were comparatively tested at 50 ℃. Based on intermittent drying mechanism of heat pump fluidized bed, combined with the effect of continuous drying method on the quality of the wheat, the intermittent drying experiment was designed. The test showed that the drying rate of the heat pump and fluidized bed was higher than that by thin layer hot-air and larger decline in water content with the same initial moisture content. Compared with continuous drying the greater the intermittent number η, the higher the system energy use and the thermal efficiency, the better quality of the dried wheat. The optimal effect by intermittent drying was when η =2/3. The results provide reference for design of drying equipment and improvement of grain storage process, which has an important significance for improving the grain, seeds and other granular material storage effect and prolong its storage period.