对于一座大型的水利枢纽工程来说，往往需要设置若干个闸门或压力钢管等金属结构来控制、调解和输送水流。这些金属结构能否在质量上满足设计要求的条件下正常工作，将直接影响水工建筑物的安全运行和效益的发挥。本文分析了正常运行的水工金属结构应具备的性质以及易出现质量事故的原因，提出了加强水工金属结构产品质量的具体措施。 For a large-scale water control project, often need to set up a number of gate or pressure pipe and other metal structures to control, mediate and transport water. Whether these metal structures can work normally under the condition that the quality meets the design requirements will directly affect the safe operation and benefits of hydraulic structures. This article analyzes the normal operation of the hydraulic metal structure should have the nature and the reasons for the quality of the accident prone, to enhance the hydraulic metal structure of the product quality measures.