This experiment was conducted to study the effects of dietary vitamin E level on performance, carcass quality, serum biochemical parameters and reproductive hormone contents of liver-breeding geese aged 0 to 12 weeks and find out vitamin E requirement of geese aged 0 to 4 weeks and 5 to 12 weeks. One hundred and eighty 1-day-old Qingnonghui geese were randomly selected and divided into 6 treatments with 3 replicates per treatment and 10 geese in each replicate. The geese were fed the basal diets supplemented with 0, 5, 10, 20, 40 and 80 IU/kg vitamin E, respectively, and raised for 12 weeks. The results showed as follows: 1) the average daily gain and average daily feed intake of geese aged 0 to 4 weeks were significantly increased by the supplementation of 40 and 80 IU/kg vitamin E and those of geese aged 5 to 8 weeks were significantly increased by the supplementation of 40 IU/kg vitamin E (P<0.05). 2) The supplementation of 40 and 80 IU/kg vitamin E significantly decreased the water loss rate and shear force of breast muscle of geese aged 12 weeks (P<0.05), and the supplementation of 80 IU/kg vitamin E significantly increased the percentage of half-eviscerated weight and breast muscle rate of geese aged 12 weeks (P<0.05). 3) Serum urea nitrogen content of geese aged 4 weeks was significantly increased (P<0.05) and that of geese aged 12 weeks was significantly decreased by the supplementation of vitamin E (P<0.01), and serum alkaline phosphatase activity of geese aged 4 and 12 weeks was significantly increased as the supplemental vitamin E level was 40 IU/kg (P<0.05). 4) Serum estradiol content of female geese aged 12 weeks was significantly increased and follicle-stimulating hormone (FSH) content of them was significantly decreased by the supplementation of 40 and 80 IU/kg vitamin E (P<0.05). The contents of estradiol and testosterone in serum of male geese aged 12 weeks were significantly increased (P<0.05), but FSH content of them was significantly decreased by the supplementation of 20, 40 and 80 IU/kg vitamin E (P<0.05). In conclusion, 1) vitamin E plays a regulatory role in the performance, carcass quality, the contents of uric acid, urea nitrogen and reproductive hormones, and the activity of alkaline phosphatase in serum of geese; 2) the optimal vitamin E level in diet for liver-breeding geese aged 0 to 4 weeks is 42.98 IU/kg and for liver-breeding geese aged 5 to 12 weeks is 38.92 to 43.41 IU/kg, according to the calculation by the established regression equation; 3) according to the results of serum reproductive hormone contents of geese, the lowest level of vitamin E in diet should be 20 IU/kg.