Prepare some fresh crabs, sprinkle with a handful of salt and mix well.
After half an hour, wash it with clear water and drain it for later use.
Boil a pot of boiling water and pour in the washed crabs.
When the crab turns golden yellow, it can be picked up and drained.
Put an appropriate amount of oil in the pot. When the oil is seven minutes hot, add onion, ginger, garlic and dried Chili, and stir fry.
After frying, add cooking wine, vinegar, sugar, salt and appropriate amount of water, and stir into juice.
Pour in the drained crabs, stir well, and take out the pot for about 15 minutes.