Abstract: The ground space of many substations is narrow and many electrical equipment are prone to accidents. The land outside the substation is levied at a high cost and is not conducive to theft prevention. Therefore, the substation roof has become the best choice for the construction of UAV airports.This paper studies the structural technical transformation caused by the construction of roof airport. Taking Qingshan substation as an example, it provides a reference scheme for the construction of UAV airport in the future.