The invention provides a bagged external washing product for assisting in treating apoplexy, which is characterized in that a formula of the bagged external washing product for assisting in treating apoplexy consists of the following ingredients in proportions: 15-35 percent of castor beans, 5-25 percent of cicada slough, 15-35 percent of folium artemisiae argyi, 10-35 percent of pepper, 10-25 percent of garden balsam stem, and 10-20 percent of mulberry bark. A preparation method of the bagged external washing product comprises the steps of removing impurities, cleaning, drying, grinding and sieving. The external ointment integrates the effects of reducing swelling and drawing out poison, sore and leprosy, treating hemiplegia paralysis, anaudia and trismus, migraine and deafness and swollen tongue, dredging orifices of the head and stagnated fire, removing slight corneal opacity and improving eyesight, treating apoplexia and trismus, fever and coma as well as insanity and phlegm, curing pathogenic qi in heart and abdomen, dispersing heat in heart, regulating qi and invigorating the circulation of blood, relieving pains and tracing poison, treating stagnation of qi and blood, curing pyogenicinfections, removing mephitis, apoplexia and trismus, stopping cholera, and the like, and has auxiliary treating effect on apoplexy.