The invention discloses medicinal steamed bread for treating diabetes. Every 100 grams of steamed bread contain 3-10 percent by weight of medicament which is prepared from the following raw materials in parts by weight: 10-6 parts of Chinese yam, 10-5 parts of gorgon euryale seed, 10-3 parts of fragrant solomonseal rhizome, 8-3 parts of common anemarrhena, 8-3 parts of Mongolian snakegourd root, 8-3 parts of sophora flower, 8-2 parts of sealwort, 8-2 parts of corn stigma, 6-2 parts of dwarf lilyturf root, 6-2 parts of asparagus, 6-2 parts of propolis, 6-1 parts of curcumin and 6-1 parts of mulberry leaf. The medicinal steamed bread can be used for relieving, improving, preventing and treating diabetes type I and diabetes type II, so that the aims of relieving, improving, preventing and treating with medicinal foods are achieved.