The invention provides high-activity flavored cubilose and a preparation method thereof, the preparation method comprises the following steps: soaking dry peach gum and white birch juice in a
mass ratio of 1: (10-15) for 3-5 hours, and after the dry peach gum is softened, cleaning and removing impurities to obtain softened peach gum; stewing the softened peach gum and silver birch juice in a
mass ratio of 1: (12-25) for 15-25 minutes, finely
grinding by a
colloid mill, and homogenizing to obtain peach gum
slurry; spraying deionized water to the dried swallow strips, rehydrating for 30-40 minutes, then pre-
steaming, and adding white birch juice for soaking to obtain soaked swallow nests; uniformly stirring the soaked cubilose and the peach gum
slurry, standing, dividing, cleaning and spin-
drying to obtain highly-soaked swallow shred; the highly-soaked shredded swallow meat is placed in an ultrasonic solution to be soaked, the soaked shredded swallow meat is fished out, the pH of the remaining solution is adjusted to 6.8-7.2, a neutral
mixed solution is obtained, and the ultrasonic solution is composed of emblic leafflower concentrated juice and silver birch juice; filling the soaked shredded bird's
nest, the neutral
mixed solution and the peach gum
slurry, and sealing to obtain a bird's
nest bottle to be sterilized; and sterilizing the bird's
nest bottle to be sterilized to finally obtain the high-activity
flavor bird's nest.