The paper introduces subway station foundation excavation preparation and specific excavation procedures,specifically analyzes exca-vation and support scheme,and points out matters needing attention in foundation excavation and steel support construction,with a view to guar-antee construction successful and construction safe.%介绍了地铁车站基坑开挖前的准备工作及具体的开挖工序，对基坑开挖及支护方案进行了详细的分析，提出了在基坑开挖和钢支撑施工中的注意事项，以确保施工的顺利进行，保证施工安全。
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