Objective To find TCM methods to treat the microangiopathy complications of diabetes. Method Based on the decoction of Wen Dan Tang. Some revistions were made in the prescription (Reducing radix glycyrrhizae, Rhizoma zingiberis recens, Fructus ziziphi jujubae. With the Fructus Aurantii to replace the Fructus Aurantii Immaturus) to treat different microangiopathy complications of diabetes. Result The decoction of Wen Dang Tang was used and some revisions were made in the recipe following the various symptom complexes to treat more than a hundred patients with different kinds of microangiopathy complications of diabetes like the stagnation of phlegm and the stasis of vital energy (such as: retinal disease, nephropathy, acromelic gangrene). Satisfactory curative effects were obtained. Conclusion In clinical practice, as soon as a doctor finds any patient with diabetes who has suffered from the symptoms caused by stagnancy of vital energy and stasis of phlegm, it is advisable to apply the changed Wen Dan Tang which is according to the Bian Zheng Luen Zhi (diagnosis and treatment based on an overall analysis of symptoms and signs, including the cause, nature and location of the illness and the patient's physical condition according to the TCM basic theory).