1. Wash the pig exhibition meat, and then blanch it.
2. Put the rattlesnake in a container and soak it in water for 2 hours.
3. Add pork, rattle slices and ginger slices to the pot.
4. Cover the lid and start the bone soup to stew for 3 hours.
5. Pause the program after stewing for 2 hours, and start the program after adding carrot pieces.
6. Add salt and oil 2 minutes before cooking.
7. After the stewing process, put the snail pork soup into a bowl and serve.