The invention discloses an extracting technology for a broccoli bud seedling extract. The extracting technology for the broccoli bud seedling extract comprises the following steps: selecting a broccoli bud seedling, processing the broccoli bud seedling, extracting bud seedling powder, and preparing the broccoli bud seedling extract. Because the technology is capable of optimizing a traditional broccoli bud seedling extracting technology, and changing compositions of an enzymolysis agent, the yield of the broccoli bud seedling extract can be improved. In the case without purification, the broccoli bud seedling extract has better purity, and has better quality and stability; the application range of the broccoli bud seedling extract can be enlarged, and earnings are increased.