Abstract: With the development and growing demand of our market economy, increasing numbers of hotels and office buildings grow abruptly form the ground, with more extensive applications of the rotating stair elements. However, the construction of the rotating staircase has also been faced with technical difficulties. This paper applies some project case studies to illustrate the application of BIM technology in the design and construction of the rotating steel staircase, which provides a new method for such project to save the cost from the source, to speed up the construction progress, to ensure the quality, and to improve the efficiency.