The invention discloses a headache treating medicine patch for external use and a preparation method thereof; the medicine patch consists of Chinese herbal medicine raw materials with the following weights: 10g to 20g of centipede, 18g to 22g of scorpion, 8g to 12g of blister beetle, 8g to 12g of safflower, 13g to 17g of szechuan lovage rhizome, 8g to 12g of manchurian wildginger, 13g to 17g of angelica dahurica, 13g to 17g of brassica alba boiss, 8g to 12g of borneol, 8g to 12g of gardenia florida and 8g to 12g of hongniang; the preparation method comprises the steps of: taking the raw materials according to the weights, washing the raw materials, crushing the raw materials into medicine powder for later use, coating vaseline on a piece of sterile gauze evenly and then putting the medicine powder on the vaseline evenly to obtain the headache treating medicine patch for external use. The medicine patch for external use is capable of significantly relieving tension headache, cluster headache, headache caused by a brain tumor and the like. When in use, the medicine patch for external use produces effects in 10 minutes and gradually eliminates headache in 5 hours to 6 hours, with the effective rate of 100 percent.