The invention discloses an application of cordyceps militaris Fu tea in preparation of hypoglycemic medicaments. According to the invention, the cordyceps militaris Fu tea and agilawood leaves are prepared into a compound water decoction which is applied to hypoglycemic medicaments. According to the invention, animal in-vivo researches find that the compound cordyceps militaris Fu tea has obviousregulation effect on glucose and lipid metabolism disorder of type 2 diabetic rats and can regulate fasting blood glucose, glycated hemoglobin, total cholesterol, triglyceride and the like of the diabetic rats, and show that the compound of the agilawood leaves and the cordyceps militaris Fu tea has obvious effect on reducing blood glucose of the type 2 diabetic rats.