In this study,effects of culture method(in a bottom-covered with sand tank and a plastic net),stocking density(50-250 ind./m~2),and food type(Sargassum thunbergii meal,Sargassum sp. meal,kelp Laminaria japonica meal,fish meal and shrimp meal) on growth and survival of rock-worm Marphysa sanguinea with average body weight of(6.26±1.68) g were studied to optimize the conditions of artificial breeding and culture. The results showed that a plastic net suspanded breeding method had better growth and high surviv...