1. When cleaning hairy crabs, you can use brushes to clean the backs, bellies and feet of the crabs. Gently brush the crab's shell with a brush to remove hair and mud.

2. You can use scissors to trim the hairs on the crab's feet to make them neater. Carefully cut the hairs on the crab's feet to make sure you won't hurt yourself.

3, Before cleaning the hairy crabs, you can soak the crabs in vinegar water for about 20 minutes and clean them with a brush. This will sterilize the crab and remove any dirt from the crab.