Abstract: With the improvement of living standards, people pay more and more attention to dietary quality； And several carnivorous fishes, such as perch, Channa argus and Siniperca chuatsi have been paid more attention because of their higher nutritive value. At present, these kinds of economic fish are in the transformation process of aquaculture model from the traditional pond culture to the pond engineering culture and from feeding the ice fresh fish to feed the artificial formula feed. This paper summarized the current aquaculture status and the indexes in the specific evaluation of nutritional value for these major freshwater aquatic products, and summarized the possible changes of nutritional value in the course of the conversion of the aquaculture model. After the discussion, it was found that the nutritional value, especially protein quality of economic fish such as perch and mandarin fish fed with formula feed were lower than those fed with ice fresh fish ，and the effect of this new aquaculture model with pond circulating water culture on the nutritive value of these carnivorous fishes was unclear for the nutritional value of the fish. However, seen from the present research, pond circulating water culture can effectively improve water quality and limit the accumulation of harmful substances to a certain extent. So this new aquaculture model has a positive effect on the edible quality of these kinds of economic fishes. This paper summarizes the mechanism of nutrient value formation during the transformation of aquaculture model for the main freshwater aquatic products, to provide a theoretical basis for the implementation of a new green and healthy sustainable aquaculture model.