There are excellent conditions for developing aquaculture in deep sea waters including the high quality water, suitable regional or current water temperature, and very few terrigenous pollution & disease, etc.. The support of safe & reliable engineering equipment and guarantee system for marine operation is significant for developing deep sea aquaculture and realizing "deep blue fishery". Large-scale fish farming ships and cages facilities are the core equipment of deep sea aquaculture engineering, and also the leading R&D technology over the world. Based on the analysis of deep sea engineering equipment research progress, this paper proposed the strategic conception and pointed out the key tasks of boosting the scientific and technological progress in China's deep sea aquaculture engineering equipment and "deep blue fishery".