Fishing method: First, jointly form a large encirclement for the fish, and connect the nets to each other at the same time. Then, the nets are gathered in the middle of the net circle and connected together, and the two ends of the net are pulled and pulled to form their own independent encircling circles, and then the nets are raised to catch the fish. When a school of fish is detected, the net should be kept at an appropriate distance from the school of fish in the downwind or above the flow direction, and the net should be quickly rotated to form an encirclement with the school of fish as the target. The net is stretched vertically in the water to form a net wall, which quickly surrounds the fish and blocks its retreat, and then tries to narrow the encirclement or block the net under the net. It is caught by taking the part of the fish or inside the net sac. Fishing objects: inland waters are anchovy, bream, carp, crucian carp, silver carp, shrimp, silver carp, etc.; in the ocean there are mainly yellow crucian carp, shrimp and other small trash fish and larvae of some economic aquatic animals. Mainly catch fish with strong cluster.