Marine fishery is one of the quickest developing industries in China now, but it faces some problems which encumber its development further. In terms of the analysis of recent situation 6f studies and the main problems affecting sustainable development of China´s marine fishery, the author proposes 5 High - technology subjects supporting the fishery sustainable development for the future. They include the technologies on excellent seeds cultivation and reproduction in mariculture, disease prevention and health mariculture, industry mari-culture and ecosystem-base regulation, living marine resources sustainable development and management, and utilization of marine living active materials.