Abstract: In this study, the growth performance and egg quality of different generations of six duck populations from National Waterfowl Species Gene Bank (Fujian) were compared and analyzed.The results indicated that weight of different age, 300-day-old body size, laying performance and egg quality had no significant difference among different generations of the six duck populations (P>0.05) , and all the results met the national standard and the descriptions of Animal Genetic Resources.The conclusion showed that genetic diversity of waterfowl germplasm resources coubl effectively be preserved by the“family equimultiple random select cross method”in small closed population, which benefitted for enrichment and improvement of the theory and technology of waterfowl conservation.