Reservoir fisheries in China have been subjected to a shift from the natural recruitment fisheries depending totall on natural resources to the artificiaJ farming with varying extent of intensification. However, the species and feeding habits of farm fish for reservoir fisheries, as well as the availability of natural food organisms suggest that semi-intensive fisheries are the backbone of reservoir fisheries in China. Middle- and small-sized reservoir, cove, and net enclosure are the main forms of semiintensive reservoir fisheries in China. Fish yield of these culture systems is directly related to manure and feed input. The high yield and high profitability are realized by the maximal utilization of natural food organisms and supplemental feed. The nutritional basis and practical technology of semi-intensive fisheries have been discussed, and the future research efforts on supplemental feed development in semi-intensive system also mentioned.