The purpose of this trial was to study the effects of dietary vitamin A level on growth performance, fur quality, vitamin A deposition, serum biochemical indices and antioxidant function of growing Rex rabbits aged 3 to 5 months. Two hundred 3-month-old Rex rabbits with an average body weight of (1.50±0.14) kg were randomly assigned to 5 groups with 40 replicates in each group and each replicate contained 1 rabbit. Rabbits in control group were fed a basal diet, and rabbits in the experimental groups were fed experimental diets containing 5 000, 10 000, 20 000 and 40 000 IU/kg vitamin A, respectively. There was a pretrial period of 7 days followed by an experimental period of 53 days. The results showed as follows: the dietary vitamin A level had a significant impact on feed/gain (P<0.05), and had no significant effects on average daily feed intake and average daily gain (P>0.05); the dietary vitamin A level had significant impacts on fur weight and fur area (P<0.01), and had no significant effects on hair follicle density, primary hair follicle density, secondary hair follicle density and secondary hair follicle density/primary hair follicle density (P>0.05); the dietary vitamin A level had significant impacts on vitamin A content in serum and liver (P<0.05), and the vitamin A content in serum and liver was observably increased with the increase of dietary vitamin A level (P<0.05); the dietary vitamin A level had significant impacts on urea nitrogen, total protein and albumin contents in serum (P<0.05), and had no significant effects on triglyceride, cholesterol, high density lipoproteins and low density lipoprotein contents in serum (P>0.05); the dietary vitamin A supplement could improve the anti-oxidative activity in serum and liver, had significant impacts on the activities of glutathione peroxidase (GSH-Px) and total superoxide dismutase (T-SOD) (P<0.01), and malondialdehyde (MDA) content (P<0.05) in serum, had significant impacts on the activities of GSH-Px (P<0.01) and T-SOD (P<0.05), and MDA content (P<0.05)in liver, and had no significant effect on total antioxidation capacity in liver (P>0.05). Considering all indices of this experiment, the appropriate vitamin A level in the diet of growing Rex rabbit is 10 000 IU/kg.