The invention discloses sour bean sprouts and a novel production method thereof and belongs to the technical field of food processing.The sour bean sprouts are characterized by being composed of fresh beam sprouts, edible salt, white granulated sugar, white vinegar, calcium chloride, Baijiu, gourmet powder, nisin and fermentation liquid.The production method is unique in process, audio frequency liquid fermentation technology is adopted, and blanching, color protecting, crispness keeping and freshness keeping are integrated, so that production process is simplified, production steps are reduced, production period is shortened greatly, energy sources are saved, production cost is lowered, and product quality is improved; the objective of commercial sterilization can be achieved by adopting a normal-pressure sterilizing method, the sour bean sprouts are fresh and crisp in taste, attractive in appearance and excellent in color, smell and flavor, and quality guarantee period at normal temperature can reach more than one year.