The rapid development of urban underground rail traffic, especially such problems as complex geological conditions, too many pipeline layout and the impact of the surrounding environment emerging in subway station construction process, often lead to the difficulty in station construction. Therefore, reasonable construction scheme is critical for the efficient construction safety of the station. In this article, according to the actual situation of Shenyang Metro Line 9 Shen Su Xi Lu metro station, a station model is established by using BIM technology. Based on simulation of two selected plans and in consideration of geological conditions, the construction schedule and cost, the article simulates and analyzes station open cut construction process and concludes that "bi-lateral step method" is more reasonable. At the same time, the article analyzes the advantages of BIM technology in Metro construction. The case study shows that the BIM technology and the bilateral step method have broad application prospects in the construction process of subway station.