Objective:To investigate the treatment based on differentiation of symtoms and sigins of traditional Chinese medicine(TCM) in the treatment of osteonecrosis of the femoral head. Method: Patients with necrosis of the femoral head in Qi stagnation and blood stasis

deficiency of liver and kidney and heat resistance were enrolled(30 cases each). According to symptom differentiation treatment of 3 months was 1 courses. After 3 courses

Harris hip score was compared. Result: The deficiency of liver and kidney in patients with femoral head necrosis rate(83.33%)was significantly higher than that of qi stagnation and blood stasis (60%) and heat resistance (56.67%)(P<0.05).After the treatment of Harris hip score in 3 groups showed difference cmpared with that before treatment(P<0.01). After the treatment

Harris hip score liver and kidney deficiency type and liver and kidney deficiency type

heat resistance type showed difference(P<0.05). That in liver and kidney deficiency type was better than those of other two types. Conclusion: According to syndrome differentiation and disease differentiation

the principle of TCM syndrome differentiation treatment for osteonecrosis of the femoral head can improve the treatment effect.