Aiming at the market demand that high moisture content paddy must be dried in time during the harvest in the south of China, three kinds of drying technologies, namely, low constant temperature drying, variable temperature drying and adding tempering time during variable temperature drying, were tested on the circulating batch paddy dryer. On the basis of tested results, interrelationship and interaction among parameters, such as paddy moisture, air temperature, paddy temperature, the ratio of tempering time to drying time etc., were analyzed. ...