The invention provides a leisure-cultivation-environmental protection integrated marine ranch. The marine ranch located in surrounding waters near coastlines comprises a cultivation region formed by encircling of a plurality of cone-shaped cultivation net cages, wherein aquatic products are cultivated in the cultivation net cages; artificial fish reef rows are accumulated in waters close to the periphery of the cultivation region, and sea grass and/or seaweeds grow on the artificial fish reef rows and in waters in the bottom of the cultivation region; and an automatic feeding device and a leisure wharf boat are arranged in the cultivation region formed by encircling of the cultivation net cages. Based on an ecological circulating system marine ranch and recreational fishery, the invention provides the marine ranch system which is the novel marine fishery production mode for management by making full use of modern science and technology. The ecological environment of the waters is optimized by repairing and constructing habitats of aquatic organisms and a win-win state of mutually promoting joint development of low-carbon environment protection and tourist industry is achieved by combining artificial cultivation and leisure tourism, so that better economical benefit, ecological benefit and social benefit are obtained.