The invention discloses a low-temperature yeast (Saccharomyces cerevisiae) CGMCC No. 7512 for brewing musalaisi, and the musalaisi prepared through fermentation by using the strain. According to the invention, through analysis of different temperatures, sugar contents, alcohol contents and low nitrogen tolerance, an initial fermentation test, detections of wine production, flocculability, self solubility, H2S production capacity and biogenic amine production property, a pectinase activity test and a beta-glucosidase activity determination test, the low-temperature musalaisi yeast with excellent brewing performance can be screened, and is widely applied in fields of light industry production and the like.