The present invention relates to a special clinical nutritional formula for 
energy supply during delivery and a preparation method thereof. The special clinical nutritional formula comprises the following components in parts by weight: 1-5 parts of proteins, 0.1-1 part of lipid, 10-15 parts of carbohydrates, 0.05-1 part of 
dietary fiber, 0.01-0.15 part of macroelement, 0.001-0.004 part of 
trace element, 0.001-0.003 part of fat-soluble 
vitamin, 0.01-0.03 part of water-soluble 
vitamin, 0.01-0.05 part of dietary essence, 0.01-1 part of medicinally and edibly homogenous ingredient, 0.1-0.5 part ofa natural 
plant compound and 0.01-2 parts of new resource food. The present invention also relates to the preparation method of two clinical nutritional formulas. Through screening and proportioningof the components, the special clinical nutritional formula for the 
energy supply during the delivery fully supplements needed necessary 
nutrient components required for the delivery of pregnant women, is more easily digested and absorbed by the pregnant women, fully plays efficacies of the various components, quickly provides the energy required for the delivery of the pregnant women, at the sametime effectively ensures necessary nutrients for 
fetal growth and development, and helps the pregnant women to conduct the spontaneous delivery and shorten stages of the delivery.