To investigate the repairing mechanism of necrotic femoral head treated with Shengmai Chenggu capsule, we measured the mechanical properties and biochemical components of steroid-induced necrosis of femoral head in the rabbits. The results revealed the mechanical properties osteocalcium, the ratio of Ca/P and collegen of the femoral head in the group treated with Chinese herb were better than those in the group control and model. It indicated Shengmai Chenggu capsule can modify biochemistry metabolism, improve necrotic bone repairing.