Field experiments combined with laboratory testing were used in this study,including the research of suitable time to pick rape shoot,the degree of harvesting shoot,the contrast experiment of large blocks,nutrition structure analysis of shoot.The results indicated that after shoot harvest the product structure of rape appeared remarkable change.Rapeseed yield reduced 17.7% compared with harvest only rapeseed,but net income increased 33.7% compared with CK.The ratio of input and output is 1:3.5.The shoot of Brassica napus rape is an excellent green vegetable.The suitable harvest time is when shoot is 60cm long.Harvesting shoot JUST 1 time is the best.