NOVELTY - Method for preparing animal probiotic feed by fermenting edible mushroom waste, straw and pasture, and preparing (a) probiotic fungal liquid, (b) aerobic probiotic bacterial liquid, (c) anaerobic probiotic bacterial liquid, (d) slightly alkaline complex nutritional dilution using e.g. sugar and potassium, (e) fermented fodder by crushing edible fungal waste, straw and grass, (f) constructing fermentation device, and (g) probiotic fermented animal feed.    USE - The method is useful for preparing animal probiotic feed (claimed).    ADVANTAGE - The method is simple, not time-consuming, less labor-intensive, and suitable for large-scale promotion.    DETAILED DESCRIPTION - Method for preparing animal probiotic feed by fermenting edible mushroom waste, straw and pasture, and preparing (a) high concentration of probiotic fungal liquid by (i) formulating fungal liquid, filling the fungal liquid into triangular flask, sealing using a double-layer paper, steam sterilizing the culture under high pressure, cooling sterilized culture to obtain probiotic fungal spores, fermenting the culture, and stopping fermentation to obtain aerobic probiotic fungal mycelium seed liquid, and (ii) adding probiotic fungal liquid to fermentation tank, and suitable quantity of antifoaming agent, sterilizing the mixture, inoculating fungal mycelium seed liquid to fermentation tank, ventilating, fermenting, uniformly stirring, and cooling at room temperature, where aerobic probiotic fungi is one or more chosen from e.g. Rhizopus, (b) aerobic probiotic bacterial liquid by (i) formulating bacterial liquid, filling the bacterial liquid into triangular flask, sealing using a double-layer paper, steam sterilizing the culture, and fermenting culture, and (ii) performing the above-mentioned step (ii), and aerobic probiotic bacteria is one or more chosen from e.g. Bacillus subtilis, (c) bacterial liquid by (i) anaerobic probiotic inoculum, loading culture into Erlenmeyer flask, plugging flask using silica gel plug, sealing and wrapping with plastic film, performing steam sterilization under high pressure, cooling sterilized culture, and fermenting, and (ii) performing step as above-mentioned in step (ii) under anaerobic condition, and anaerobic probiotic bacteria is one or more chosen from e.g. Bifidobacterium, (d) nutritional dilution using sugar, (e) fermented fodder by crushing e.g. straw, (f) constructing solid state fermentation device, and (g) probiotic fermented animal feed by (i) preparing 5-10 cm thick cushion layer at the bottom of the fermentation tank using straw, dried rice straw, dried straw, dried bean straw, and hay, (ii) filling fermented fodder, and laying pipe for controlling temperature, (iii) passing hot water, where temperature sensor indicates the fermentation tank at 24-30 degrees C, formulating probiotic aerobic fungal liquid by diluting 10-60 times with slightly alkaline nutritional compound, transporting liquid into hollow column through soft tube and hollow column, then passing sterile air, and fermenting, and (iv) passing cold water, formulating probiotic aerobic fungal liquid with slightly alkaline nutritional compound, transporting liquid into hollow column through soft tube and hollow column, and fermenting.