The invention provides probiotic rice-dumplings and a preparation method thereof. The preparation method of the probiotic rice-dumplings comprises the following steps: preparing raw materials and auxiliary materials; preparing probiotic fermentation liquid; carrying out fermentation; making rice dumplings; and cooking the rice dumplings. The rice dumplings prepared by the preparation method are relatively long in shelf lives, safe, healthy, balanced in nutrition, extremely good in taste, attractive in aroma, not greasy after frequent eating, and easy to digest. The added probiotics can effectively regulate intestinal flora balance of the human body, as well as increase the number of the probiotics in the intestine so as to prevent constipation and diarrhea, and reduce blood sugar and blood lipid. Thus, the probiotic rice-dumplings are a kind of health-care leisure food suitable for people of all ages.