Mixed powdered lactic acid bacteria were prepared by mixing crude oil, skim milk powder, sodium caseinate, glucose, and pectin, homogenized and sterilized in a homogenizer and a sterilizer, and mixed with four types of powdered lactic acid bacteria, And the fermentation is carried out in a fermenter until the pH is reduced to 4.0 ~ 4.6, so that economical cost and time can be minimized due to proper temperature and fermentation time, and the flavor of the final product, fermented milk, can be improved.The present invention relates to a fermented milk production method using a low temperature fermentation and multiple lactic acid bacteria,A mixing step (step 1) of mixing raw materials for mixing crude oil, skimmed milk powder, sodium caseinate, glucose and pectin in a mixer； A homogenization process (second process) of homogenizing the mixed oil in the first process in a homogenizer； A third step of sterilizing the homogeneous oil in the second step for 3 to 7 minutes in a sterilizer set at 90 to 100 DEG C and cooling the sterilized homogenate in a cooler； A powdered lactic acid bacteria producing step (fourth step) for preparing a mixed powdered lactic acid bacterium by mixing powdered lactic acid bacteria； And a mixing and fermentation step (fifth step) of fermenting the fermented product until the pH is reduced to 4.0 to 4.6 after mixing the sterilized homogenized milk of the third step and the mixed powdered lactic acid bacteria of the fourth step do.Fermented milk, low temperature fermentation, complex lactic acid bacteria, sterilization, cooling, fermentation, fermentation time, pH, flavor원유, 탈지분유, 카제인 나트륨, 포도당, 펙틴을 혼합하고, 균질기 및 살균기에서 균질 및 살균하고, 4종의 분말 유산균을 혼합하여 혼합분말 유산균을 제조한 후 살균한 균질유와 혼합분말 유산균을 혼합하고 pH가 4.0~4.6으로 감소할 때까지 발효기에서 발효함으로써, 적정한 온도와 발효시간으로 인해 경제적 비용 및 소요시간을 최소화할 수 있을 뿐만 아니라 최종생산물인 발효유의 풍미를 향상할 수 있다.본 발명에 따른 저온발효 및 복합 유산균을 이용하여 부드러운 식감을 향상시킨 발효유 제조방법,원유, 탈지분유, 카제인 나트륨, 포도당, 펙틴을 혼합기에서 혼합하는 원재료를 혼합하는 혼합공정(제1공정)과； 상기 제1공정의 혼합유를 균질기에서 균질하는 균질공정(제2공정)과； 상기
