Abstract: Seven serum physiological indices of ten male sika deer by fence grazing in deer farm on Riyue Mountain were determined and they were compared with some physiological indices of Qilian white-lipped deer,Qilian red deer and Qilian sika deer. The results showed that total albumen in the serum of sika deer on Riyue Mountain was significantly lower than that of Qilian white-lipped deer,Qilian red deer and Qilian sika deer（P0.01） .The inorganic phosphorus in the serum of sika deer on Riyue Mountain was significantly lower than that of Qilian white-lipped deer（P0.01） . And other serum physiological indices had no significant difference（P 0.05）.