Take large underground commercial building as the research object, this paper discusses the importance of underground commercial fire design. Focusing on the problems in the process of fire protection design and put forward the design ideas of analyzing problems and policies of solving problems according to the past design experiences.%以大型商业建筑为研究对象，简述了地下商业部分防火设计的重要性，着重阐述了该类建筑在防火设计过程中遇到的问题，并依据以往的设计经验，提出了该类建筑消防设计的思路，并制定了相应的解决问题的方法和对策。
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