Experimental design method of the single factor was adopted in this research.450 ten-week Landes geese,which were raised well in the same batch with similar weight,were randomly divided into 3 groups.The first group was control group,others were testing group（each of them contained 150 geese with 3 repetitions）.In addition to overfeed,2% of goose oil,2% of bean oil and 2% of corn oil were added into the first,the second and the third group,respectively.The effect of different kinds of oil supply on lecithin in fatty liver was investigated after three weeks of overfeed and the economic returns was analyzed.The results showed that after overfeeding,there was remarkable（p＜0.05） difference in contents of cephalin,lecithin,unsaturated fatty acid,protein and fat in liver compared with those pre-feeding geese.There was not remarkable（p＞0.05） difference between the control group and the test group,and the geese in each group.Compared with the first group,each goose in the second and the third earned 8.8 yuan and 7.71 yuan RMB,respectively.