The selection of bait nest materials is particularly important in fishing. Fishermen can throw a lot of bait nests into the fishing spot first, then hook the bait and throw it into the fishing spot. When herring eats bait, it first sucks the bait into its mouth, then grinds it with its pharynx teeth and swallows it. When the reaction force acts on the float, the float sinks sharply into the water, and the fisherman can just lift the pole after the float completely sinks into the water. After the herring is hooked, the fisherman should calm down, quickly squat down to make the fishing rod bow, and then rely on the elasticity of the fishing rod to fight the herring. Never straighten the pole and show the appearance of tug of war.