The invention discloses a wheat malt composite 
powder and a preparation method thereof.Wheat malt 
powder with a natural color, a natural 
flavor and a natural taste is scientifically compounded with functional products such as 
lactobacillus plantarum 
powder, modified dietary fibers, ferment powder and 
oligosaccharide, so that the trophism, the 
food safety and the healthcare function of the wheat malt composite powder are effectively improved, and the 
probiotic property and the quality stability of the wheat malt composite powder are also significantly improved.The wheat malt composite powder is prepared from simple components and is natural in color, 
flavor and taste, high in nutritive value, strong in healthcare function, high in 
food safety and long in 
shelf life, the content of bioactive substances is high, the 
viable count of probiotics is high, the 
probiotic property is high, and complete varieties of functional metabolites of probiotics are provided with a high content.Ultrasonic cleaning, instant 
microwave puffing and germ killing, high-
voltage pulse processing, combined biological enzymolysis and soaking and 
germination accelerating are adopted in the wheat malt preparation process.The soaking and 
germination time is short, the 
germination rate is high, the content of bioactive substances is high, the production efficiency is high, environmental 
pollution is avoided, and environmental friendliness is achieved.