The invention discloses a processing method for anti-caking soybean protein peptide feed. The processing method includes the following steps of 1, enzymolysis of protein raw materials; 2, screening of protein materials; 3, pretreatment of the protein materials; 4, mixing of a composite anti-caking agent. By means of the processing method for the anti-caking soybean protein peptide feed, the small peptide content of the produced soybean protein peptide feed accounts for 85% or above of the content of protein, the anti-oxidation capacity is increased by 200% or above, the situation that no cake is generated within 5 months can be kept under the condition that the room temperature is equal and 8 layers are stacked, and the problems that peptide feed is prone to caking and a traditional anti-caking agent is ineffectively used in the existing enzymolysis and fermentation technology, so that material waste is severe are well solved. The processing method for the anti-caking soybean protein peptide feed is a biological processing method for the peptide feed which is high in platability and can remarkably improve animal digestive absorption and meanwhile avoid feed caking waste, and wide application prospects are achieved.