NOVELTY - Performing solid-state fermentation to produce probiotic bacteria spore powder, involves inoculating cultured bacteria or fungi in solid culture medium to obtain bacterial suspension, inoculating bacterial suspension into solid-state fermentation culture medium, detecting the concentration of bacteria, fermenting and obtaining bacterial suspension solid fermented culture, drying and crushing the culture, performing high spore powder extraction, adding filler into spore powder and obtaining probiotic bacterial powder and packaging the product.    USE - The method is useful for performing solid-state fermentation to produce probiotic bacteria spore powder used in animal feed, poultry feed or drinking water for animals.    ADVANTAGE - The method reduces mixed fungi pollution rate in the production process, consumes less energy, produces product in large amount, and is simple, rapid and environmentally-friendly.    DETAILED DESCRIPTION - Method for performing solid-state fermentation to produce probiotic bacteria spore powder, involves preparing eggplant bottle culture medium comprising 20% potato, 0.5% peptone, glucose or sucrose, 2% monopotassium phosphate, 0.05% magnesium sulfate and 0.03% agar, seed culture medium comprising 7-10% rice bran or wheat bran, 2-10% peanut or soybean meal, 0.5% peptone, 1% cane sugar and 2% agar, and solid fermentation culture medium comprising hull and wheat bran in a weight ratio of 3:7-5:5 and has water content of 50-60%, adding bacteria in freezing pipe for culturing and maintaining eggplant bottle strain in the culture, inoculating cultured bacteria or fungi in solid culture medium and culturing at 34-39 degrees C for 24-36 hours to obtain bacterial suspension, inoculating bacterial suspension into solid-state fermentation culture medium and culturing at 34-39? for 55 hours, detecting the concentration of bacteria, completing fermentation and obtaining bacterial suspension solid fermented culture, drying and crushing the culture, performing high spore powder extraction, adding filler into spore powder, mixing and sieving the mixture to obtain probiotic bacterial powder and detecting the quality of the powder and packaging the product.