Diabetic patients can eat a small amount of cold noodles, but its glycemic index is usually higher, should pay attention to moderation, and try to add less sugar, syrup and other seasonings. Diabetic patients themselves pancreatic function decline, for blood sugar metabolism ability is weakened, to minimize the eating of high-sugar food, if the food glycemic index is high, it is easy to cause violent fluctuations in blood sugar. Cold noodles itself belongs to the starchy food, usually made of mung bean starch, sweet potato starch and other grains, rich in a large number of carbohydrates, high glycemic index, diabetics try to reduce the amount of food. When diabetics consume cold noodles, it is recommended that they be eaten as a staple food, while flavorings such as white sugar, syrup, honey and condensed milk should be added sparingly. If obvious blood glucose instability occurs, it is necessary to consult a doctor for timely observation and standardized treatment under the guidance of clinicians.