The demand of human beings for the ocean is infinite, but the self-healing ability of the marine ecosystem is limited. Every year, more than 20 million tons of plastic waste from land flows into the ocean through rivers. At present, almost all types of plastics found in the ocean, more than 80% of which are non-degradable resin materials such as nylon, polypropylene, polyethylene, and polyvinyl chloride. Among them, fishing nets are a huge source of plastic pollution. While killing sea turtles and other marine organisms, they also produce a large amount of nylon waste materials. Therefore, with the increasing depletion of oil resources and the strengthening of global environmental awareness, researchers have begun to invest in various marine renewable nylon technologies.