The trawler on the trawler uses the winch on the deck to collect the net. The trawl net adopts high-toughness polyethylene wear-resistant wire and rope, which has good impact resistance and wear resistance. Trawling is a fishing method with good effect and wide application range. The trawling operation is flexible, adaptable and has high productivity. Trawling is a mobile filtering fishing gear that uses the movement of the ship to drag the fishing gear forward in the seabed or seawater, forcing the fishing gear to pass through the fish, shrimp, crabs and other fishing objects in the waters into the net bag to achieve the purpose of fishing.