The invention discloses a probiotic solid drink with a hypoglycaemic effect and a preparation method of the probiotic solid drink. The probiotic solid drink comprises components in percentage by weight as follows: 5%-15% of complex probiotics, 14%-28% of xylooligosaccharide, 50%-80% of L-arabinose and 4%-6% of dietary fiber. Complex probiotic powder contains lactobacillus rhamnosus, lactobacillus reuteri and bifidobacterium adolescentis. With the adoption of the probiotic solid drink, a large quantity of probiotics can be proliferated, the colonization rate and survival rate of exogenous probiotics on the intestinal mucosa are increased, a balanced system of intestinal flora is improved, immunity of a human body is improved, an organism is promoted to repair various functions, so that the auxiliary hypoglycaemic effect is realized. With the adoption of a dry blending technology, nutrient substances with different characteristics are subjected to optimizing and compounding combination, so that the problems of need for refrigeration, short guarantee period, single flora constitution, low viable counts and the like of a conventional liquid probiotic drink are solved, and the market prospect of products is broad.