The invention relates to peony-algal oil-walnut milk, belonging to the technical field of vegetable protein beverages. The peony-algal oil-walnut milk comprises the following raw materials in parts byweight: 950 parts of water, 18 parts of white granulated sugar, 18 parts of honey, 55 parts of walnut kernels, 30 parts of black sesame, 15 parts of Paeonia ostii flowers, 13 parts of carrot juice, 3parts of peony seed oil, 2 parts of acer truncatum seed oil, 0.5 part of diglycerol fatty acid ester, 0.5 part of xanthan gum, 0.4 part of arachidonic acid grease, 0.2 part of algal oil DHA, 0.4 partof gamma-aminobutyric acid, 0.4 part of phosphatidylserine, 0.2 part of a preservative and 0.8 part of walnut essence, wherein the protein content is equal to or more than 0.5%. The peony-algal oil-walnut milk disclosed by the invention is rich in nutritional value, good in taste, suitable for people with sleep problems and people with hyperlipidemia to eat for a long time, and capable of effectively improving sleep quality and reducing blood fat. Meanwhile, the peony-algal oil-walnut milk also has the effects of promoting brain development, strengthening the brain, benefiting intelligence, promoting bone growth of children, enhancing physiological functions of organisms, resisting thrombus and the like.