Preparation method of papaya animal feed

The invention discloses a preparation method of papaya animal feed, which comprises the following steps: peeling and deseeding fresh papaya fruits, slicing the peeled and deseeded papaya fruits to obtain papaya slices, crushing papaya peels, and mixing the crushed papaya peels with water and a compound enzyme agent for reaction to obtain a mixture B, the compound enzyme agent being obtained by mixing cellulase, hemicellulase and pectinase; the preparation method comprises the following steps: adding pawpaw seeds into water, stirring, filtering to obtain filtrate A and filter residues, crushing and cooking the filter residues, adding a sodium citrate solution, stirring, and filtering to obtain pawpaw seed residues and filtrate B; mixing and fermenting the pawpaw slices, the mixture B, water and the complex microbial inoculant A to obtain a fermented material; the fermented material, papaya seed residues, soybean meal, wheat bran and a complex microbial inoculant B are mixed and fermented, and the papaya animal