Preparation method of seed pumpkin leaf feed

The invention discloses a preparation method of a seed pumpkin leaf feed. The preparation method comprises the following steps: cutting seed pumpkin leaves to 1-3 cm in length, and sequentially spraying formic acid and molasses on the surfaces of the seed pumpkin leaves, wherein the ratio of the volume of the finally used formic acid to the mass of the seed pumpkin leaves is 1-2 mL/kg, and the ratio of the mass of the finally used molasses to the mass of the seed pumpkin leaves is 20 g/kg; and then carrying out anaerobic fermentation on the seed pumpkin leaves. By using the method disclosed by the invention, the pH value of the seed pumpkin leaf feed is reduced, the contents of lactic acid and acetic acid are increased, the content of butyric acid is reduced, the content of soluble sugar is increased, and the dry matter loss and the ammoniacal nitrogen content are reduced; and the crude protein content and the peptide nitrogen ratio in the seed pumpkin leaf feed are increased, the fiber content is reduced, th