The invention discloses a plaster for treating wound ulcers and surgical ulcers caused by venomous snake bites, which is made of the following traditional Chinese medicine raw materials in proportions by weight: 25-35 parts of liangmianzhen, 15-25 parts of star anise, and 15-25 parts of rhubarb , Senecio 15‑20 parts, Scutellaria baicalensis 10‑15 parts, saponin thorn 20‑30 parts, Chuanxiong 15‑25 parts, safflower 10‑15 parts, peach kernel 10‑15 parts, frankincense 10‑15 parts, myrrh 10 parts ‑15 parts, 5‑10 parts of centipede, 10‑20 parts of scorpion, 10‑15 parts of wood turtle, 10‑15 parts of Angelica dahurica, 15‑30 parts of white pomegranate, 10‑15 parts of Gallnut, 20‑35 parts of Viper , 20-35 parts of white snake, 15-25 parts of pig's trotter, 5-10 parts of borneol, 40-60 parts of raw blood, 350-450 parts of snake oil, 800-900 parts of yellow dan, 1400-1600 parts of sesame oil. The invention has the effects of promoting blood circulation and removing blood stasis, reducing swelling and relieving pain, softening blood stasis and dispelling stagnation, and can realize removing rot and pulling out pus, promoting muscle growth and skin growth, thereby effectively curing wound ulcers or long-term surgical ulcers caused by venomous snake bites.