When diabetic patients have high blood sugar with insulin resistance after eating oatmeal, it is recommended to take dietary adjustments, appropriate exercise, drug therapy and other ways. 1. Dietary adjustment: diabetic patients may have higher blood sugar after eating oatmeal containing sugar, so they should avoid eating foods with high sugar content in daily life and try to choose sugar-free oatmeal; they should also maintain low-salt and low-fat diet and try to avoid eating fried foods, fatty meats and desserts. 2. Appropriate exercise: diabetic patients can choose jogging, cycling, swimming and other sports to improve insulin resistance. 3. Medication: Diabetic patients with poor blood sugar control and insulin resistance can use medication under the guidance of doctors, and they can choose glucose-lowering drugs that increase the sensitivity of insulin, such as metformin, pioglitazone, etc., and if necessary, they can be injected with insulin therapy. Diabetic patients should actively cooperate with doctors for treatment.