To investigate the effects of long term tobaccorice continuous cropping on soil nutrients and fluecured tobacco leaf yield and quality，the soils of different continuous cropping years were collected in tobaccorice multiple system of Hengyang.Some important indexes，including pH，contents of organic matter and available nutrients of N P K，contents of medium trace elements of soil samples，and contents of main chemical components of fluecured tobacco samples were detected for further analyzing.The results showed that pH value of moderate continuous cropping soil(≤7 years) was more coordinated，in addition，leaf yield and quality of fluecured tobacco were contained，the sugarnicotine ratio and potassiumchlorine ratio were proper.However，under longterm continuous cropping(≥10 years) condition，the soil acidification was obvious，and yield and benifit of fluecured tobacco declined.It was suggested that planting green manure or keeping fallow to improve soil quality after continuous cropping 7 years in tobaccorice system.