The invention relates to special flour for pregnant women, belonging to the technical field of food. The flour contains folic acid, vitamin A, vitamin D, vitamin E, vitamin B6, vitamin B1, vitamin B2, calcium lactate, zinc lactate, ferrous lactate, Auricularia auricula, Asparagus, garlic, carrot, ginger, Eucommia ulmoides, Salvia miltiorrhiza, processed Rehmannia glutinosa, Rhizoma Atractylodis, Polygonum multiflorum stems, Radix Puerariae and Carthamus tinctorius flowers. The preparation method of the flour comprises the steps of adding the vitamins, the calcium, iron and zinc components to the flour with a weight of 10%, kneading to obtain dough, drying and pulverizing; grinding vegetables and traditional Chinese medicine components into fine powder with a particle size of 80-100 meshes; and mixing, adding residual flour, and uniformly mixing. According to the invention, pregnant women can obtain comprehensive and rich nutrients during daily dining, so that the requirements of organism growth, development and metabolism are met, the immunity is enhanced, the pregnant women are prevented from falling sick, the purposes of promoting normal development of fetus, preventing various diseases and improving nutrient and health level of national can be achieved; and the flour can be prepared into various flour products.