The resources of reservoirs in China are abundant,about 1/3 of the whole water area which can he used for freshwateraquaculture, as the aquatic environment in reserviors are suitable for various fishes. Since 1950s, freshwater aquaculture has de-veloped rapidly in China, especially after 1979,resulting in substanstial expansion of aquaculture area, significant increase of aqua-culture output, and more fish species cultured in more reservoirs. Though ayuaculture could reduce nutrient level of reservors insome way or the other, the abuse and overuse of fertilization and feed in reservoirs in recent years had caused the deteriation of waterbodies,e.g. the outbreak of algal blooms in some reservoirs and/or sub-areas of reservoirs. In order to reduce the pollution load andprotect the aquatic environment of reservoirs, sustainable development of reservoir fisheries is necessary. Finally, some bionomic con-trol countermeasures were favorably suggested for the mitigation of negative feel backs of aquaculture in Chinese reservoirs.