The invention relates to quick-frozen boiled dumplings applicable to diabetes and a preparation method thereof. The quick-frozen boiled dumplings are prepared by the method comprising the following steps: firstly, weighing the following raw materials in parts by weight: 15-20 parts of mulberry fruit, 15-18 parts of medlar, 20-26 parts of citrus chirocarpus, 10-13 parts of vine root, 12-16 parts of citron, 10-13 parts of poria cocos, 15-19 parts of milkvetch root and 5-8 parts of rhizoma anemarrhenae; secondly, mixing the raw materials, adding water and decocting for twice, namely adding 10 times weight of water for decocting for the first time for 2 hours and adding 8 times weight of water for decocting for the second time for 1.5 hours, respectively filtering extracts obtained by the twice decoction by virtue of a sieve of 160-180 meshes, concentrating filtrates until the density is 1.23-1.26g / cm<3> so as to obtain an extractum, mixing 1 part by weight of the extractum and 5-10 parts by weight of boiled dumpling powder, and then preparing the quick-frozen boiled dumplings by adopting the conventional quick-frozen boiled dumpling preparation process. By applying the boiled dumplings provided by the invention, islet cells can be nourished, the function of pancreas islet can be improved, the glycogenic index of food can be effectively controlled, the fasting glucose and the postmeal glucose can be reduced, the dosage of medicaments used for treating diabetes can be reduced, and the life quality can be improved.