Sea snakes have small body, 1-2 meters length, flattenedbehind as oars, venomous teeth located in the upper jaw. According to popular experience, sea snakes have higher value usages in food and medicine. Sea snakes are called “hai xa nhuc” that is salty, fishy odor which has effective on anti-inflammatory, rheumatoid arthritis, spinal degeneration and pain, acute sciatica. In addition, snake gall has analgesic, sedative.