The symptoms of heartburn in late pregnancy are mainly related to the abnormal emptying function of the stomach due to the compression of the fundus by the uterus; it is also related to the increase of gastric acid secretion due to the change of hormone level, and the poor diet and living habits can induce or aggravate this symptom. In this case: first, adjust the diet and diet structure, eat less and more meals, do not eat too much at one time, try to eat light, easy to digest food, avoid eating too spicy and stimulating food and too sweet, too acidic food; second, do not lie down immediately after eating, should be appropriate walking, help the stomach contents emptying; if the patient’s stomach acid symptoms are more serious, through the simple diet and lifestyle intervention is not effective, this case is not obvious. If the patient’s symptoms of acidity are more serious, the effect of simple diet and lifestyle intervention is not obvious, this situation can be treated by taking some appropriate drugs, such as magnesium aluminum carbonate tablets, bismuth pectin, etc.