Abstract: To identify the key factors influencing the curing of flue-cured tobacco,fuzzy DEMATEL(Fuzzy of Decision Making Trial and Evaluation Laboratory) method was adopted to analyze the relation and prominence of seventeen factors in five major categories(growing environment,curing conditions,tobacco leaf characteristics,loading status and operators' skill) affecting curing.The results showed that the major factors affecting curing of flue-cured tobacco were light irradiation,atmosphere temperature,rainfall,dry bulb temperature and wet bulb temperature;among them,the rainfall,light irradiation and atmosphere at tobacco growing stage in field were fundamental factors,the control of dry bulb temperature and wet bulb temperature in barn was direct factor,and dry bulb temperature impacted the greatest influence on curing.