According to the growth condition of sea cucumber in the sea cage environment, it is found that sea cucumber combined with flake feed plays an important role in the growth of sea cucumber. Sea cucumbers with flake feed can quickly adapt to aquaculture environment, adapt to feeding habits and other characteristics to achieve healthy and rapid growth. This feed has the advantages of staying in the cage for a long time, good feeding ability, high feed conversion rate, unique flavor, not easy to rot and so on. It is the preferred feed variety for sea cucumber cultivation in the sea area. This feed directly to feed, farmers do not need to soak, cut as before, so that time saving, labor saving, safe and efficient. It can make the breeding process simple and convenient, and avoid the trouble and drawbacks brought by feeding.