介绍了小清河干流分洪道分洪闸工程在总体设计布局、弧门钢铰座———钢筋混凝土闸墩组合结构、弧形闸门支座、软基上高挡土墙、闸室桩基、金属结构及电气设备的选型等方面的设计创新。该设计取得了良好的经济效益和社会效益，受到淮委、省水利厅等各级领导和专家的好评。 This paper introduces the overall design and layout of flood diversion gate project of Xiaoqinghe main stream diversion channel. The combination of arc gate steel hinge --- reinforced concrete pier, curved gate support, high retaining wall on soft foundation, gate chamber, metal Structural and electrical equipment selection and other aspects of design innovation. The design has achieved good economic and social benefits, by the Huai Wei, the Provincial Department of Water Resources and other leaders and experts at all levels of praise.