The invention provides blood sugar reducing and inhibiting tea which is characterized by comprising the following components in parts by mass: 10-20 parts of cyclocarya paliurus leaves, 10-18 parts of mulberry leaves, 15-20 parts of ampelopsis grossedentata leaves, 10-20 parts of tartary buckwheat, 8-12 parts of lithocarpus litseifolius, 5-10 parts of pericarpium citri reticulatae, 2-3 parts of gynura divaricata, 3-5 parts of radix puerariae, 2-4 parts of lily, 3-5 parts of dendrobe, 4-6 parts of American ginseng and 6-8 parts of smoked plum. The sugar inhibiting tea belongs to a product prepared from new-resource food raw materials with homology of medicine and food, is reasonable in proportion, appropriate in taste, capable of being brewed with warm water, convenient to drink, capable of reducing blood sugar on the basis of not damaging liver and kidney organs of diabetic patients, and suitable for being drunk by hyperglycemia people and diabetic patients.