The invention discloses a method for brewing Maotai-flavor liquor, comprising the steps of raw material processing, piling, fermenting in a tank and liquor distillating, wherein the step of raw material processing is as follows: mixing sorghum, wheat and wheat bran according to the weight ratio of 80-90:8-12:3-7, adding and roughing sand, and the total weight of the sorghum, the wheat and the wheat bran is 100; the step of piling is as follows: adding distiller yeast to the processed raw materials, adopting composite piling, and causing the humidity in a fermentation chamber to be more than 70 percent; the step of fermenting in a tank is as follows: spreading hot water onto the wall of the pit before pit entry, causing the time of preservation in the pit to be within two hours, and sealing the entrance of the pit; and the step of liquor distillating includes the procedures of distilling liquor for seven times, and respectively preserving unblended liquor obtained through distilling and cooling. The adoption of the process increases the protein content of raw materials, reduces the piquance of the liquor, enhances the mellow taste, increases the proportion of the Maotai-flavor liquor in the entire cycle, and effectively ensures the liquor distilling temperature.