Soak the bought frozen hairtail in water, and clean it after the ice is civilized. Drain the cleaned hairtail section, put it on a plate, sprinkle appropriate amount of salt and spiced powder on the dried hairtail section, and marinate for about ten minutes. Peel, wash and cut onions, ginger and garlic for later use. Put the frying pan into cooking oil, fire, put the hairtail section into the pan, fry until the color is slightly yellow, then fry the reverse side, also fry until it is slightly yellow. Add a proper amount of cooking wine to the pot, light soy sauce, then add onion, ginger and garlic to the pot and add a small amount of water. After stewing for five minutes on high fire, gently turn it over and stew for five minutes on low fire. Turn off the fire, gently take it out with a spatula, and serve.