The invention discloses a plant compound peptide. The plant compound peptide is prepared from, by weight, 40-50 parts of white fungus, 40-50 parts of fungus, 40-50 parts of tea fungus and 5-10 parts of calcium aspartate. The provided plant compound peptide takes a micro-molecular peptide made from the fungus, white fungus and tea fungus as a main component, the above three components have an effect of synergistic gain, when the components are cooperatively used, the peptide is safe and does not irritate the skin, provides deep replenishment for cells, has better moisturizing, replenishing andanti-wrinkle effects, can obviously improve the skin state and promote the absorption of micro-molecular peptides by the skin through the addition of the calcium aspartate. The invention further provides a preparation method of the plant compound peptide, and the method has the advantages that the operation is simple, and the batch production is convenient.