The invention discloses a method for improving the effect of medicinal liquor. The method comprises the following steps: a, crushing Chinese medicinal materials prepared according to specific effects, adding water, blending uniformly, and fully soaking the medicinal materials for more than 48 hours under the condition that the water content of the medicinal materials is 60 to 70%; b, melting a proper amount of honey by using warm water, preparing liquid by using the honey and a proper amount of probiotic composition, and adding the liquid into the soaked Chinese medicinal materials, wherein the probiotic composition consists of biological germs for promoting strong fermentation of the Chinese medicinal raw materials and decomposing, inhibiting and killing pathogenic bacteria groups; c, stirring once every day, adding white spirit of more than 65 degrees after fermenting for seven days, and soaking. The probiotic composition is characterized by being prepared from a photosynthetic bacteria group, a lactic acid bacteria group, a yeast group, a gram-positive actinomycete group, a filamentous bacteria group of a fermentation series, bifidobacteria, bacilli and the like. The method overcomes the defects of low effect and serious waste of the conventional medicinal liquor.