Using the spore germination rate as evaluation index, study the effects of light, storage temperature, oxidation reduction potential, metal ions and low concentration of lactic acid on Monascus purpureus congjiang var. spore viability. The results showed that at the 2 ℃low-temperature storage, darkness, adding 400 μg/mL of V_C, adding 1% lactic acid were beneficial to the Monascus purpureus congjiang var. spore viability. With the addition of 400 μg/mL V_C had the highest activity, spore germination rate reached 74.22%; treatments of light, ultraviolet rays, 0.1% H₂O₂, Monascus purpureus congjiang var. spore germination rate were significantly reduced.