Taking the method of wild natural stocking, the paper studied the purification effect of landscape goldfish and domestic ducks on eutrophication and collected water sample and detected the index of water body. The results showed that the landscape goldfish and domestic ducks have a certain purification effect on eutrophic water body, TP, TN and the Chlorophyll a in the water drop significantly and the water transparency is improved, and the water ecological function is recovered preliminarily,whereby, the best comprehensive treatment effect on eutrophic water body is goldfish whose treatment effect on TN, TP and Chlorophyll a reached 63.6%, 78.7% and 88.7% respectively.