[Objective]The aim was to standardize the purification and rejuvenation system of winter turnip rape varieties,keep the fine features of the breed. [Method]The varieties of Tianyou No. 5,7,8 were purified and rejuvenated. [Result]The plant height,pod number,number of seeds per pod and 1 000-seed weight of Tianyou No. 5,7,8 were increased after purification and rejuvenation,the effect of increasing production was obvious. [Conclusion]Test showed that improvement of purification and rejuvenation system of win...