Preparation for pregnancy can drink soybean milk in moderation, while paying attention to dietary diversity, to ensure balanced nutrition. Soybean milk is rich in nutrients, rich in vegetable protein, phospholipids, vitamin B1, vitamin B2, calcium, phosphorus, iron, zinc, etc., which can replenish nutrients for the organism, so the preparation for pregnancy can drink soybean milk, but pay attention to moderation, avoid overdrinking, so as to avoid gastrointestinal discomfort symptoms. At the same time, we should pay attention to dietary diversity, reasonable distribution of various types of food intake, such as vegetables, cereals, fruits, nuts, meat, eggs and dairy products, etc., to avoid partiality, to ensure their nutritional balance. To develop regular eating habits, do not overeat.