The invention belongs to the technical field of traditional Chinese medicinal preparations, and particularly discloses a heat-clearing, sore-throat-relieving and anti-allergic traditional Chinese medicinal preparation. The traditional Chinese medicinal preparation is mainly prepared from the following raw materials in parts by weight: 10 to 18 parts of herba sarcandrae, 0.01 to 0.03 part of mentholum, 5 to 10 parts of flos lonicerae, 7 to 15 parts of periostracum cicadae, 10 to 18 parts of fructus arctii, 10 to 18 parts of flos et folium pyrostegiae, 10 to 18 parts of herba marsileae quadrifoliae, 10 to 18 parts of radix scrophulariae, 14 to 18 parts of radix platycodonis, 8 to 12 parts of fructus chebulae, 8 to 12 parts of radix glycyrrhizae, 10 to 18 parts of radix ophiopogonis, 15 to 20parts of cortex mori and 10 to 16 parts of semen sterculiae lychnophorae. The heat-clearing, sore-throat-relieving and anti-allergic traditional Chinese medicinal preparation provided by the invention has the functions of dispelling wind, clearing heat, detoxifying, deswelling, eliminating phlegm, promoting the secretion of saliva, resisting a virus and a bacterium, relieving itching and being anti-allergic, and the concentration and the purity of an effective component in the traditional Chinese medicinal preparation are improved through a preparation method of combining the distillation forabstracting volatile oil with a supercritical fluid extraction process.