There are also many ways to use the fishing net, the most common is to spread the fishing net and fix it in the water, and then wait for the fish to swim into the net. Fishermen often choose to set their nets where there is a lot of fish activity, such as in shallow waters in rivers, lakes or oceans. Once the fish swim into the net, they are trapped by the mesh, and the fishermen can pull the net to bring the fish up. Fishing nets play an important role in the fishing industry. They can not only improve the efficiency of fishing, but also reduce the damage to the marine ecological environment during fishing. However, the use of fishing nets also requires caution to avoid overfishing and harm to non-target species. Under the framework of sustainable fisheries management, the use of fishing nets should be limited and regulated to ensure the sustainable use of fishery resources.