Diabetic patients are usually able to eat acarbose before meals and drink soy milk after meals. Acarbose is a α-glucosidase inhibitor, can slow down the degradation of glucose in the intestine, slow down the speed of glucose absorption into the blood, and then play a role in lowering the role of postprandial glucose, commonly used in the treatment of type 2 diabetes mellitus; allergic to the drug, severe renal impairment, diabetic ketoacidosis, severe hepatic insufficiency and other patients prohibited the use of this drug treatment. Acarbose chewable tablets should be taken with the first mouthful of food, and capsules can be swallowed whole immediately before meals, so it is possible to take Acarbose before meals; adverse reactions such as bloating, diarrhea, and allergic reactions may occur after using the drug. Soymilk has no special requirements or contraindications for taking time, so it is okay to drink soymilk after meals, but diabetic patients are recommended to drink sugar-free soymilk. Patients diagnosed with diabetes should actively cooperate with the doctor’s treatment.