Abstract: In order to provide scientific basis for improving the breeding of‘Yangzhou Goose’ , this study investigated the correlation among body size, body weight and the production of feather- down traits of ‘Yangzhou Goose’and its 70-day-old crossbred combination. Body weight, body size and feather production of 70- day- old YangYang goose (Y × Y) and its 70- day- old crossbred combination LuoYang goose (L × Y), KaYang goose (K × Y), ZheYang goose (Z × Y) were measured, and the correlations among these traits were analyzed. The results indicated that the cross combination improved body weight, body size and feather production to some extent. Body weight, semi- submersible length and chest width of the three crossbred combinations were higher than those of Y×Y group. The total weight of down and feather of the three crossbred combinations was significantly higher than that of Y × Y group (P＜0.05), and the total weight of down and feather of K×Y group was 144.71 g, which was the highest. Feather weight in L×Y group and K×Y group was significant higher than that of Z×Y group and Y×Y group (P＜0.05). Down weight of L×Y group and Z×Y group were higher than that of K×Y group and Y×Y group (P＜0.05). The relationships between feather-down traits and body weight, body size were analyzed. Body weight, semi-submerged length and chest depth had a great influence on down and feather production, body weight and semi- submerged length had extremely and significantly positive correlations with the total weight of down and feather production, feather production and down production (P＜0.01). The results indicated that crossbreed could improve the production of featherdown, and there were correlations between body size, body weight and the production of feather-down to some extent.