The invention discloses a synbiotic compound preparation facilitating improvement of type-2 diabetes and complications of the diabetes. The synbiotic compound preparation comprises, in weight percent,5%-10% of animal bifidobacterium lactobacillus subspecies, 6%-9% of bifidobacterium bifidum, 8%-12% of lactobacillus acidophilus, 2% -6% of lactobacillus reuteri, 3%-8% of lactobacillus gasseri, 2%-6% of Inulin, 4%-8% of ructo oligosaccharide, 8%-11% of xylo-oligosaccharide, 5%-9% of beta-glucan, 8%-11% of glucomannan, 2%-4% of hydroxypropyl methyl cellulose and 3%-6% of psylliumseedhusk powder.The invention further discloses a preparation method of the synbiotic compound preparation facilitating improvement of the II-type diabetes and complications of the diabetes. The preparation method includes the steps: probiotic culture; probiotic fermentation; freeze drying; uniformly blending and sub-packaging. The compound preparation has improving effects on insulin resistance, biochemical criterions of blood glucose and blood fat and oxidative stress, obvious auxiliary treatment effects on current treatment schemes and no obvious side effects.