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Infrared radiation drying characteristics of carrot slices were studied by using infrared radiation drying device. The drying curves of carrot slices were obtained in experiments under different drying conditions. The results showed that the better drying performance appeared when the drying temperature was 70℃, the slice thickness was 5mm and the irradiation distance was 140mm. The experimental datum was simulated with different mathematical models. The results also showed that Page model was fitted to express infrared radiation drying process of carrot slices. Both the Page model and Midilli model could match with the actual value under the same condition; however, Page model was easier to build and calculate. 