This paper inquires the steel structure hoisting scheme of air-cooling units of 2 x 600 MW of Datong second thermal power plant （ phase Ill ）, adopts the construction method of segmentation assembly on ground platform for major structure, hoisting connection in the air, and local span, and successfully finishes the hoist of large-scale spatial three-dimensional structure, which has provided guidance and experience for future similar steel structure hoist of air-cooling platform.%针对大同第二热电厂三期2×600MW空冷机组钢平台吊装方案进行了探讨，通过采取主体结构在地面平台分段拼装组合，高空吊装连接后局部补跨的施工方法，成功完成了大型空间三维立体钢结构的吊装，为今后类似空冷平台钢结构吊装提供了指导和经验。
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