Diabetic patients can eat roast duck in small quantities when their blood sugar control is stable. Roasted duck is rich in protein, fat, and a small amount of carbohydrates, and a small amount of roasted duck for diabetic patients can replenish the nutrients needed by the body. However, roast duck contains a lot of fat, especially the skin part of the roast duck, the fat content is higher, the calorie is also high, intake of too much roast duck is likely to cause blood sugar fluctuations, not conducive to the control of the disease. Diabetic patients need to pay attention to the diet of low sugar, low fat, low salt, strictly control the total calorie intake. Appropriate exercise, if necessary, follow the doctor’s instructions to regulate the use of metformin, acarbose, insulin and other treatment. Diabetic patients can consult a professional doctor to develop an individualized diet plan.