When blood glucose is low during pregnancy, symptomatic treatment is recommended first. Pregnant women with medical and surgical comorbidities should first resolve the comorbidities and stabilize the underlying disease. Insulin dosage should be adjusted in a timely manner according to the monitored blood glucose value, and if necessary, go to the hospital in a timely manner. Secondly, we should eat scientifically, specifically the following aspects: 1. regular breakfast, breakfast can eat more milk, eggs, meat porridge, cakes, sugar, sugar water and noodles and other high protein, high fat and high carbohydrate food; 2. less food and more meals, pregnant women because of early pregnancy vomiting phenomenon is more obvious, many pregnant women will have a loss of appetite, but can not not eat, only less food and more meals to ensure nutritional intake; 3, If the reaction of pregnancy vomiting is too serious, you can eat soda cookies to neutralize stomach acid, but also to replenish energy. Pregnant women with low blood sugar can bring some small snacks with them. During pregnancy, pregnant women consume energy faster, so bring along small snacks or fruits and other convenient food to eat in time when you are hungry, so as to avoid the situation of low blood sugar.