Proliferation method of broccoli

The invention discloses a proliferation method of broccoli, comprising the following steps: 1) removing the root of broccoli, marking the broccoli plant of which the root is removed as a root-removed broccoli plant; 2) implanting the root-removed broccoli plant into an enrichment medium, cultivating until the root-removed broccoli plant outgrows a root and a terminal bud, and marking the obtained plant as a broccoli plant with the root and the terminal bud; 3) removing the terminal bud of the broccoli plant with the root and the terminal bud, continuing to cultivate until the root of the leaf blade of the plant outgrows a bud point, and marking the plant in the period as a broccoli plant with the bud point; and 4) cutting off the bud point of the broccoli plant with the bud point, and inoculating in a rooting medium to be cultivated until the broccoli seedling is obtained. Experiments prove that the method of the invention has short proliferating cycle, high proliferating rate and high survival rate of the obtained broccoli seedling. The method of the invention has wide application prospect in the broccoli proliferation field.