The invention discloses functional peanut milk. The functional peanut milk is prepared from the following raw materials: honey, white granulated sugar, milk powder, peanut paste, sealwort extract, resveratrol which is a polygonum cuspidatum extract, ginkgetin which is a ginkgo biloba extract, gynostemma pentaphylla extract and mulberry leaf extract. The peanut milk is prepared from the following steps: drying and shelling peanut kernels to acquire shelled peanut kernels; crushing the shelled peanut kernels and then adding pure water for decoction, and filtering to acquire the peanut paste; evenly mixing the honey, the white granulated sugar, the milk powder, the sealwort extract, the resveratrol, the ginkgetin, the gynostemma pentaphylla extract and the mulberry leaf extract at mass scale and sufficiently stirring for dissolution, then sterilizing and packaging to acquire a finished product. The functional peanut milk has the obvious effects of even liquid, good stability, sweet smell, good taste and rich nutrients and has the special functions of reducing blood fat and blood pressure, protecting heart and cerebral vessels, protecting liver, delaying senescence and improving immunity.