Diet therapy is the basic treatment of diabetes, diabetic patients can choose low glycemic index, low sugar content, low calorie food consumption. About beans are plant protein, is a suitable staple food for diabetics, diabetics can eat beans. 1, mung beans, mung bean starch contains a considerable amount of oligosaccharides, mung beans are lower in calories than other cereals; 2, black beans contain chromium; 3, red beans are rich in dietary fiber; 4, soy beans are high in soluble fiber and rich in phospholipids. In short, different beans have their own characteristics, suitable for diabetic patients, but the amount of beans consumed by diabetic patients to 50g each time is appropriate.