The thinking and practice of Marine Ecological Conservation Red Line Delineation in China

China has established and implemented marine ecological conservation red line (MECRL) system to strengthen the bottom constraints ensure security. This paper introduces concept of MECRL process overall consideration national delineation, which is defined “spatial-division + differential control measures”. The in Bohai Sea pilot delineation nationwide are introduced. At present, accounts for about 30 percent total coastal management area, providing a good institutional guarantee protecting ecology guiding formation scientific spatial layout china.