Abstract: In view of the ecology．the following questions concerned with the climate of water bodies for fresh water fishery are discussed：the research on the environment of fish growth should be based on the ecological climatic elements of the water bodies；freshwater fishes in China have their 0wn suitable living areas based on their thermaal eeo-type;the differences of light and thermal conditions of water bodies give different climatic productivities of phyto-plankton;and the climatic regionalization of fresh water fishery should be conducted according to the climatic resource characters of water bodies，and their effects on fish distribution，growth and primary productivty of water bodies.