The invention relates to the technical field of dairy products, in particular to formula goat milk powder for pregnant women and a preparation method of the formula goat milk powder. The formula goat milk powder for pregnant women comprises the following ingredients in parts by weight: 500 to 600 parts of fresh goat milk, 30 to 40 parts of demineralized whey powder, 5 to 10 parts of whey protein powder, 2 to 6 parts of walnut oil, 2 to 6 parts of fructo-oligose, 0.6 to 1 part of docosahexaenoic acid (DHA), 0.1 to 0.2 parts of choline, 450 to 600 parts of folic acid, 0.2 to 0.5 parts of complex vitamins and 0.2 to 0.6 parts of complex trace elements, and the formula goat milk powder is prepared according to a certain method. The DHA, the walnut oil and the fructo-oligose are added according to the nutrition requirements of the pregnant and lying-in women and the growth and development requirements of babies, and the nutrition elements including folic acid, calcium, ferrum, zinc and the like are enhanced, so the self DHA and the choline of the pregnant women are improved, the concentration in the body is maintained at a high-level state, and the excellent and sufficient nutrition can be provided in the fast development period of the brain of the babies.