The invention discloses a comprehensive proliferation method of belzungia in tropical and subtropical marine ranching. The comprehensive proliferation method of the belzungia in the tropical and subtropical marine ranching is the novel comprehensive proliferation method of the belzungia in the tropical and subtropical marine ranching, which is able to create composite proliferation modes according to different large seaweed and shellfish growing water areas, growing seasons and ecological niches. With the adoption of the method, the water mass can be fully utilized, the ecological environment can be improved, the belzungia output is high, and efficient economic and ecological benefits are realized.