Abstract:Based on the systematic review of the conceptual evolution process of marine ranching and its development of practice, this paper pointed out the problems existing in the construction of marine ranching in China, such as lack of theoretical support, lack of ecological engineering technologies, and lack of ecological management. It then proposed the concept of marine ranching artificial ecosystem. In addition, the paper analyzed the structural principle of marine ranching artificial ecosystem from the viewpoint of cultivating key functional communities and habitat construction for the marine ranch fishery resources. Finally, the paper discussed the theoretical framework of the modern marine ranching artificial ecosystem, including the planning and design, the construction of ecological engineering and intelligent engineering, and the establishment of adaptive management, aiming to explore the ecological theory system for China's modern marine ranching construction.