Abstract: Based on the fluidized bed theory, a series of thin layer wheat drying experiments were carried out in an electric drying oven with gentle breeze in it to simulate the wheat drying process in fluidized bed. As a result, the wheat drying correlation was developed from those experiment data for predicting the wheat drying time in fluidized bed. An experiment system combining fluidized bed with heat pump was designed and experiments on which indicated that the correlation could predict the drying time reasonably. Further economical analysis proved the efficiency and a promising future of the fluidized bed drying with heat pump.