To analyze the characteristics of TCM syndrome of patients with renal osteodystrophy on maintained hemodialysis (MHD).Methods:The patients symptoms, collected by a cross sectional survey served as variables of the factor analysis which took use of the spindle factor method, accompanied with the method of the Maximum variance of orthogonal rotation.Results:Five main factors were inducted from the factor loading matrix.Conclusion:Renal osteopathy has 5 basic TCM syndromes as yin deficiency of liver and kidney syndrome, turbidity and toxin stagnation syndrome, yang deficiency of kidney syndrome, blood stasis syndrome and moisture Stagnation syndrome.