Objective To further discuss the characteristic of diabetic nephropahty,analyze its cause and pathogenesis,and make clear the relation between symptoms and syndrome,and to provide proof for prevention and therapy of this disease.Methods Records of 200 diabetic nephropathy patients treated clinically were collected and SPSS(Statistical Package for Social Science)12.0 was applied for analyzing.According to different conditions of the renal function,We divide the cases into two groups to study the relations between symptoms and syndrome.Results 1.The common symptoms of diabetic nephropathy are heavy body and drowsiness(74%),tired and debilitation(70%),and deficient breath and unwilling to speak(64%).2.The main syndromes of diabetic nephropathy are syndrome of deficiency of Qi、syndrome of yin asthenia,syndrome of dampness-heat blocking in the middle,and syndrome of blood stasis.Conclusion According to the research,the highest frequent appearing syndromes of deficiency were syndrome of Qi deficiency and syndrome of Yin deficiency,while the syndrome of dampness-heat blocking in the middle ranked No.1 in sthema syndromes and then caine the syndrome of blood stasis.However,the syndrome of blood stasis was the most severe,and this syndrome existed from the beginning to the end of this disease.