The invention belongs to the field of agricultural breeding, and particularly relates to 
animal feed processed by the aid of 
ginkgo biloba sarcotesta and a method for preparing the 
animal feed. The 
animal feed processed by the aid of the 
ginkgo biloba sarcotesta is made of the 
ginkgo biloba sarcotesta. The method includes repeatedly extracting the 
ginkgo biloba sarcotesta by the aid of organic solvents to remove 
ginkgolic acid which is a toxic substance in the 
ginkgo biloba sarcotesta; centrifugally washing the 
ginkgo biloba sarcotesta to remove the residual organic solvents to obtain the animal feed. The animal feed and the method have the advantages that the residual quantity of the 
ginkgolic acid in the animal feed made of the ginkgo biloba sarcotesta is lower than 10 mg / kg, and the residual quantity of the organic solvents is lower than 0.5 wt%; the ginkgo biloba sarcotesta contains abundant 
starch, polysaccharides, 
amino acid, diversified vitamins and proteins, further contains small quantities of ginkgo flavone, 
terpene lactones, 
daucosterol and diversified trace elements and is processed to obtain a ginkgo biloba sarcotesta 
feed additive, the ginkgo biloba sarcotesta 
feed additive can be used for breeding animals, and accordingly effects of preventing and treating diseases, protecting health and promoting growth of 
livestock can be realized; food can be saved, environments can be cleaned, 
pollution can be reduced, and requirements of the modern breeding industry on environmental friendliness, 
environmental protection, safety and zero 
pollution can be met.