This paper analyzes the structure of the relict element and its effect of the function of steel.Furthermore,some good measures and suggestions of relict element of pipeline steel are put forward.

• 分析钢中残留元素的组成,以及钢中残留有害元素对钢性能的影响,并针对衡钢管线钢中残留元素控制提出改进措施及建议。