A kind of trawl board structural improvement,Including an arc ontology,One mono- Hook consolidate portion,One bis- Hook consolidates portion and a weight body； Wherein the mono- Hook consolidates one of system, portion pivot joint what arc ontology articulated section,Gang Suo Hook to provide fishing boat is solid,2 the 2nd Hook consolidate system, portion be respectively set the lateral surface of the what arc ontology close to it is upper,The position of lower end,Gang Suo Hook to provide trawlnet is solid,The Balancing system combination what arc ontology close to the position of lower end,The effect of to increase balance； By most using the active force of what arc ontology using seawater water flow,Move arc ontology can outward,The expansion of traw mouth is driven,Improve marine products amount of fishing.一種拖網板結構改良，包括一弧形本體、一第一鈎固部、一第二鈎固部及一配重體；其中該第一鈎固部係樞接於該弧形本體之一樞接部，用以提供漁船之鋼索鈎固，該二第二鈎固部係分別設置於該弧形本體之外側面靠近上、下端之位置，用以提供拖網之鋼索鈎固，該配重體係結合於該弧形本體靠近下端之位置，用以增加平衡之功效；藉由利用海水水流最用於弧形本體之作用力，使弧形本體可向外側移動，帶動拖網網口的擴張，提高海產捕撈量。
