[Objective] The purpose of the study was to optimize the technological parameters of drying apple slices with self-made heat-pump drying equipment.[Method] The apple slices were dehydrated and dried with self-made heat-pump drying equipment,the influences of the temperature of drying medium,forced filling rate and slice thickness on drying rate and power consumption were discussed through single factor experiments and 3-factor and 3-level orthogonal test.[Result] Under 30~40 ℃,in the same drying time,as the...