Abstract: In order to analyze the contribution of technical parameters in burley roasting to integrated score of smoking, temperature of hot air, the temperature of wet bulb, drying time and thickness of leaf carpet were tested by using uniform design. The stepwise regression model was established. The effects of technical parameters in burley roasting to integrated score of smoking were analyzed. The results showed that the coefficient of determination was 0.9999, significance test was carried out (P=0.0246), the verification results of model were that the relative deviation of the model prediction and the actual value was small. The order of the contribution rate of the tested factors to integrated score of smoking in the test range was that: temperature of hot air > the temperature of wet bulb > drying time > thickness of leaf carpet.