The invention relates to a 
nutrient powder and its preparation method. The 
nutrient powder is made of 
soybean protein isolate, soybean 
oligopeptide, vegetable fat 
powder, milk powder, complex vitamine, mineral substance components, etc, viz. 
soybean protein isolate, soybean 
oligopeptide, vegetable fat powder, milk powder, 
soybean lecithin, vitamine A. vitamine D, 
vitamine E, vitamine C, vitamine B1, vitamine B2, vitamine B6, nicotinic acid, 
choline, 
folic acid, Ca, Fe, Zn, Se, Mg, and 
taurine. The invention is provided with unique formulation, and can rapidly supplying energy and 
nutrient, especially 
protein, for dissipating fatigue, promoting restoration of 
skeletal muscle, strengthening 
immunologic function, improving motion ability, rapidly restoring 
physical strength, etc, thereby it can contribute to health, 
disease-resistance improvement, and motion 
score improvement, accordingly, the health-care food can be used for soldiers, sportsmen, moderate or hard physical labors in training or working, and be suitable for 
chronic fatigue patients to use for a long time.