More particularly, the present invention relates to a method for producing fermented cereals using Rhus verniciflua extract, and more particularly, to a method for producing fermented cereals using Rhus verniciflua extract, which comprises processing Rhus verniciflua as sawdust and fermenting it with a microbial fermentation broth, The present invention is directed to an invention capable of manufacturing the same. The above-described features of the present invention are summarized as follows: a step of crushing dried rhus verniciflua and processing it into sawdust; A primary fermentation step of mixing 30 to 40% by weight of the microorganism fermentation broth with 60 to 70% by weight of the sumac sawdust and fermenting the mixture for 38 to 42 days by adding 34 to 38 캜; Adding the fermented sawdust to the tank together with water, extracting it for 5 to 7 hours while applying ultrasonic vibration and fine bubbles at a temperature of 35 to 45 캜, and filtering the residue to complete the liquid extract; 30 to 40% by weight of an extract of Rhus verniciflua, 30 to 40% by weight of a fermentation broth of a microorganism and 30 to 40% by weight of molasses, fermenting the mixture at a temperature of 34 to 38 DEG C for 28 to 32 days to complete a liquid medium A tea fermentation step; A third fermentation step in which the fermented liquid medium is sprayed (sprayed) onto the surface of the grain uniformly and then fermented for 4 to 7 days at a temperature of 35 to 37 ° C; And naturally cooling the fermented cereal at 23 to 27 캜 and then packing the fermented grains. The method for producing fermented grains using the Rhus verniciflua extract is also provided.본 발명은 옻나무 추출물을 이용한 발효곡물의 제조방법에 관한 것으로서, 더욱 상세하게는 옻나무를 톱밥으로 가공하고 미생물 발효액으로 발효시킨 추출물로 곡물을 발효하여 옻나무의 약용 물질이 함유된 고품질·고기능성의 곡물을 제조할 수 있도록 한 발명에 관한 것이다.전술한 본 발명의 특징은, 건조된 옻나무를 분쇄하여 톱밥으로 가공하는 단계; 옻나무 톱밥 60∼70중량%에 미생물발효액 30∼40중량%을 고르게 혼합하고, 34∼38℃의 온도를 부여하여 38∼42일간 발효시키는 1차 발효단계; 발효된 톱밥을 물과 함께 탱크에 투입하여 35∼45℃의 온도에