The invention relates to a special clinical 
nutrient composition for 
gestational diabetes and a preparation method of the 
nutrient composition. The composition comprises 20-35 parts of 
protein, 8-15 parts of fat, 25-40 parts of 
carbohydrate, 3-8 parts of 
dietary fiber, 0.6-1.2 parts of macroelements, 0.01-0.03 parts of microelements, 0.005-0.015 parts of fat-soluble vitamins, 0.08-0.2 parts of water-soluble vitamins, 0.05-0.6 parts of dietary essence, 0.5-4 parts of medicinal and edible components, 0.1-1 part of natural 
plant compounds and 0.1-0.4 parts of new resource food, wherein the medicinal and edible components are selected from at least one of Chinese yams, black sesame, radix puerariae, rhizoma polygonate, folium mori, fructus lycii, radix platycodonis and lilies; 
powder is prepared from the components in advance, and 
grease powder is prepared from fat with a microencapsulating technology. Through sieving and proportioning of the components, the 
nutrient composition can provide comprehensive 
nutrition for patients suffering from 
gestational diabetes, and 
digestion and absorption are facilitated; besides, the components with the blood glucose reducing function are added to assist in reducing the blood glucose level of the 
gestational diabetes and the 
disease risk, and growth demands and normal development of fetuses are guaranteed.