Abstract: Clinically, women will undergo physiological changes during pregnancy, leading to increased blood sugar. A small number of pregnant women have insufficient or ineffective insulin secretion. Gestational diabetes. Clinically, women will undergo physiological changes during pregnancy, leading to increased blood sugar. A small number of pregnant women have insufficient or ineffective insulin secretion. To protect the safety of mother and fetus, patients with hyperglycemia and diabetes during pregnancy should pay attention to the following aspects. 1. Diet Principles 1. Balanced diet. 2. Choose fiber-rich foods such as unprocessed beans