A pulsed air-impingement dryer was designed with large processing capacity, convenient to replace the size and shape of the nozzle exit compared to conventional air-impingement dryer. The machine could adjust air temperature, wind speed, rotary speed of materiel shelf, nozzle diameter and structure according to different materials properties. Material was received the pulsed impact of high-speed hot air, which contributed to outward migration of moisture within the material. Tomato was adopted to test the performance of pulsed air-impingement dryer. The results showed that the dehydration intensity and processing capacity of pulsed air-impingement dryer was improved than the conventional air-impingement dryer.