The invention relates to a method for producing sophorose ester through fermenting waste molasses and waste glycerin, which comprises the following implementation steps that: (1) spore suspension preparation: torulopsis utilis TJZKBA 10326 is inoculated on the inclined surface of a culture medium and is cultured for 2 to 4 days at the constant temperature being 30 DEG C, and normal saline with the mass concentration being 0.75 percent is added for washing mycelia, and the bacterial suspension is obtained; (2) the bacterial suspension is used for being inoculated into the sterilized liquid seed culture medium, the spore suspension is inoculated into the cooled liquid seed culture medium according to the inoculation quantity with the volume percentage being 2 to 5, and liquid seeds are obtained; (3) the liquid seed culture medium is used for being inoculated into a sterilized 5L fermentation tank, then, the liquid culture medium is inoculated into the cooled fermentation tank culture medium according to the inoculation quantity with the volume percentage being 2 to 5, the fermentation temperature is 30 to 34 DEG C, the dissolved oxygen is controlled to be 30 to 40 percent, and the fermentation time is 48 to 72h; and (4) after the fermentation is completed, the mixed organic solvent of organic solvent ethyl acetate/isopropanol with the same volume as the fermentation liquid is used for extracting the sophorose ester. The method has the advantages that the process is simple, the cost is low, and the effect is obvious.