NOVELTY - Extract of Erigeron breviscapus comprises (in wt.%): scutellarin (0.1-5), chlorogenic acid (0.05-3), caffeic acid (0.002-3), acyl quinic acid (0.01-3) and auxiliary materials (2-98). The extract is in the form of liquid or powder with a relative density of 1-1.35 g/ml.    USE - The extract of E.breviscapus in the form of liquid or powder is useful for treating cardiovascular and cerebrovascular diseases, chosen from coronary heart disease and angina.    ADVANTAGE - The extract can be prepared simply and cost-effectively, and is environmentally-friendly, safe, stable, transparent and convenient to transport, and thus suitable for elderly people.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) preparation method of E.breviscapus extract, involves drying whole Erigeron breviscapus, adding ethanol solution (70%) to the above raw material, extracting the mixture for 3 times (1.5 hours, each), mixing the extracts, condensing the solution, adjusting the pH of the solution to 6.5, adding concentrated solution of protein (1.5), stirring the mixture uniformly, boiling the mixture, stewing and cooling the mixture to room temperature or cooling the medicinal liquid by refrigerating for 3 hours, filtering the mixture and concentrating the mixture to relative density of 1-1.35 to obtain liquid extract, or condensing the mixture and drying the mixture into extract powder;    (2) oral liquid of E.breviscapus extract comprising raw materials (in parts weight): E.breviscapus liquid extract, flavoring agent (200-600), preservative (0.1-7) and water, and prepared by obtaining liquid extract of E.breviscapus, adding flavoring agent, preservative and purified water to the extract, adding water (900 ml) to the mixture, adjusting pH to 7-8 of the mixture using sodium hydroxide solution (10%), filtering the mixture, filling the mixture into the container, sterilizing the mixture and filling the mixture (10 ml, each) to obtain oral liquid, and    (3) a buccal tablet which comprises (in g): Erigeron breviscapus liquid or powdered extract (50-300) with a relative concentration of 1.2-1.35 g/ml, filler and flavoring agent (175-450 g). lubricant (1-25 g) lubricant, methol (0.05-0.5 g) and humectant and is prepared by uniformly mixing the filler, flavoring agent, Erigeron breviscapus liquid or powdered extract, adding the humectant to obtain a soft material, granulating by a 14 mesh screen, drying at 65-75 degrees C, sieving by a 12-24 mesh screen, uniformly mixing with the lubricant and menthol, and pressing into 1000 buccal tablets.