1, you can use heat-insulating gloves to catch crabs. Looking at the back of the crab, you can see a triangular soft shell.

2. Open the soft shell and remove it with a knife. Start with the soft shell joint, pry the crab shell open with a knife, and be careful when using the knife to avoid hurting your hands.

3. Wash the crab shell and crab body, especially remove the gills on the crab body. At this time, do not cut the rope that binds the crab, otherwise it may be pinched.

4. Carefully chop off the crab's two pliers, and then the crab legs. At this time, the crab is not completely dead, and it may pinch people. Be very careful.

5. Chop the crab into 4 pieces. Remember to smash the crab's two big pliers with a knife.

6. Wash and rinse the crab carefully with a brush.

7. A key point in killing crabs is never to untie the rope that binds the crabs until you chop off the two big pliers. Because even after the crab shell is lifted, the crab is still alive, and the big pliers will pinch people, so be careful to avoid it.