Belcher sea snakes will not take the initiative to attack people. Although the Belcher sea snakes are extremely poisonous, they are docile and rarely bite people. They will only attack people when they are caught, so the incident of being bitten by the Belcher sea snakes , which usually occurs when fishermen catch fish and collect their nets.

Belcher's sea snakes like to live in shallow waters around continental shelves and islands. Rarely seen in the open ocean where water depths exceed 100 meters. Some Belcher's sea snakes prefer to stay in muddy water with sandy or muddy bottoms, while others prefer to live in clear water around coral reefs. When you find a Belcher's sea snake swimming near, keep calm and still, and wait until it leaves before moving. If you don't provoke the Belcher's sea snake, it will not bite you.