1. Prepare 400g of yellow croaker, with appropriate amounts of oil, salt, wine, cornstarch, tomato juice, sugar and vinegar;

2. Gut, scale and wash the yellow croaker, and use kitchen paper to absorb water;

3. Sharpen the knife, and then cut the fishbone horizontally from the fishtail horizontal knife;

4. Cut the second side in the same way, and then cut the fishbone with kitchen scissors;

5. Cut the fish with an oblique knife, don't cut off the skin, and keep the fish stuck to the skin;

6, and then cut three knives horizontally, in order to let the fish stick to the fish skin;

7. Marinate the sliced fish fillets with appropriate amount of salt wine for a while, and then sprinkle with raw flour;

8. Let the fish pieces be evenly wrapped with raw flour and shake off the excess raw flour;

9. Cover the fish with a proper amount of hot oil in the wok, and fry the fish until the surface is crisp and dry;

10, pick up the fried fish and set the plate;

1 1. Add appropriate amount of tomato juice, white sweet and sour, appropriate amount of salt and a little water until the sauce is thick;

12. Pour the cooked sweet and sour sauce on the fried fish pieces, and the sweet and sour fish in tomato sauce is finished.