The invention discloses a sugar-free heart-supplementing dragonhead granule, which is produced by following raw material of weight proportion: dragonhead extraction 1 to 10, starch1 to 10, calcium carbonate 1 to 10, dextrine 1 to 10, xylo-oligosaccharide 0.5 to 3, xylose 1 to 10, polyvinyl pyrrolidone solution and fruit flavor; preparation technology is as below: dragonhead extraction, starch, calcium carbonate, dextrine, xylose and fruit flavor are measured according to proportion, mixed evenly and crushed and sifted out through 80 mesh sieve, moistened using 0.01% to 0.05% of PVP ethanol solution before non-slurry pelletized at granulation machine and then dried, thereby producing the granule in pharmacy. The sugar-free heart-supplementing dragonhead granule has the advantages of having good taste, improving increment environment of bifidobacteria for intestines and stomach, improving digestion and absorption function for intestines and stomach and being suitable for adjuvant therapy of diabetic patients with cardio-cerebrovascular disease caused by diabetes.