Aspergillus oryzae aged cheese and preparation method thereof

Disclosed are aspergillus oryzae aged cheese and a preparation method thereof, wherein the preparation method of the aspergillus oryzae cheese comprises the following steps: (1) inoculating raw milk after sterilization with lactic acid bacteria fermentation agent and aspergillus oryzae spore powder, fermenting to a pH value of 6.3-6.5, wherein an additive amount of the aspergillus oryzae spore powder is 0.001%-0.008% of a mass of the raw milk; (2) adding rennin and obtaining curd after curding; (3) cutting the curd to obtain curd blocks; and (4) moulding the curd blocks after expelling whey, and performing pickling and maturing after demoulding, wherein 1-7 days are taken for maturing under 20-30°C; 5-15 days are taken for maturing under 15-20°C; 10-20 days are taken for continuing maturing under 8-12°C; and relative humidity of an environment for maturing is 85%-95%.