Objective The purpose of this study was to analyze the directions of Korean Medicine treatment of diabetes mellitus. Methods We reviewed the 52 studies about diabetes mellitus which had been published from 2000 to 2007. We selected those studies from the search engine of the web site of five journals. Those were the Journal of Korean Oriental Medical Society, Korean Journal of Oriental Physiology & Pathology, the Journal of Korean Acupuncture & Moxibustion Society, Korean Journal of Oriental Internal Medicine and the Journal of Korean Pharmacopuncture Institute. Results 1. The types of diabetes mellitus model in studies were the model used Alloxan(2cases), the model used Streptozotocin(41cases), NOD mice(1case), ob/ob mice(1case), db/db mice(5cases) and rats fed highfat diet(2cases). 2. The types of method in studies were pharmacopuncture(8cases), herbal medcine(47case) and both pharmacopuncture and herbal medcine(3cases). the types of materials in studies were single herb(24cases), multiple herbs(32cases) and both single and multiple herbs(4cases). 3. The types of evaluation criteria in studies were glucose, pancreas, liver, kidney, serum lipid, oxidative stress, nervous system, vascular system and immunity. Conclusions There have been reported many studies of diabetes mellitus in Korean Medicine. It requires to study further types of diabetes mellitus, kinds of herbs and complications of diabetes mellitus for Korean Medicine treatment of diabetes mellitus was covered the ground.