The invention provides a preparation method of compound plant allergy-relieving and repairing essence. The compound plant allergy-relieving and repairing essence is prepared from the following raw materials in parts by weight: a relieving and anti-allergy agent (rhizoma gastrodiae extract, astragalus membranaceus extract, calendula extract, flos albiziae extract and radix saposhnikoviae extract),a heat-clearing and swelling-eliminating agent (a radix geutianae extracting solution, herba pogostemonis extract, Chinese pulsatilla root extract and rheum palmatum root extract), purslane herb extract, butanediol, xylitol, aloe extract, a stimulation inhibitor (rosemary extract, chrysanthellum indicum extract, tea leaf extract, glycyrrhiza glabra root extract, polygonum cuspidatum root extract,scutellaria baicalensis root extract and centella asiatica root extract), beta-glucan, a relieving and anti-inflammatory agent (bisabolol, paeonol, matairesinol, glycyrrhetinic acid and heparin sodium), 1,2-hexanediol, p-hydroxyacetophenone, small molecular sodium hyaluronate, sodium hyaluronate, 9010 (phenoxyethanol and ethylhexylglycerin), essence and PPG-26-butanol polyether / PEG-40 hydrogenatedcastor oil. The allergy-relieving and repairing essence provided by the invention is easy to prepare and is suitable for large-scale application and industrial production; various natural plant extract components are added so that the allergy-relieving and repairing essence has the effects of clearing away heat and eliminating swelling, relieving sensitive skin, repairing damaged skin, reducing reddening, resisting external stimulation, stopping itching and moisturizing and the like.