Diabetes,characterized by chronic increase of blood glucose,is a group of metabolic diseases.It is usually treated by oral administration with antidiabetic drug and insulin with western medicine.Diabetes is called consumptive thirst in TCM.Professor NAN Zheng thought the pathogenesis of consumptive was yin defi ciency and dryness-heat at the early stage,and at the protracted stage it was usually characterized by qi defi ciency,blood stasis,pathogen intruding into collateral and poison damaging zang and fu.He established a series of treatment plan,involving diet,movement,and the Chinese materia medica.Professor NAN opposed to abusing insulin and the insulin multi-purpose theory,and proposed the treatment should start from change of bad life style and combine with application of Chinese medicine to regulate yin-yang and qi-blood of fi ve viscera,treat triple diabetes at the same time.So long as syndrome differentiation was accurate,the Chinese materia medica may replace the insulin and prolong the life.In conclusion,this article enumerates 3 typical cases diabetes withdrawal of insulin with TCM by Professor NAN Zheng.