The invention relates to a yak cutlet and a preparation method thereof, and belongs to the technical field of meat product processing. The method comprises the steps of raw material meat acceptance and cutting, soaking and cleaning, rolling and kneading, baking, shearing, vacuum packaging, sterilization and the like. Through the improvement by the method, compared with an existing product, an original deep-frying process is changed into low-temperature baking, the flavor is better, the yak flavor is thicker, the mouthfeel is tender, and the color and the appearance are more excellent; the process is simplified, the cost is lower. The water content of the product after low-temperature baking is higher than that of deep-fried and air-dried products, the yak cutlet is more moisturized to eat,and the inner flavor and the outer flavor are both uniform, and the quality stability is high batch by batch. The method also solves the problem that yak meat has stronger roughness when eaten, so that the product is more acceptable to consumers, the production efficiency is high, and the mass production is easy.