Abstract: MIDAS/GTS NX large finite element software was used to simulate the influence of the excavation process of subway station and entrance foundation pit on the deformation of adjacent pipelines of Zhengzhou,and the deformation law was analyzed and summarized. The results show that the relative position of pipeline and foundation pit is different,and the deformation law of pipeline is different. The horizontal displacement of the pipeline located on the long side of the foundation pit presents normal distribution,and the change rate increases with the excavation of the foundation pit.The vertical displacement is mainly settlement. The horizontal displacement of the pipeline at the bottom of the foundation pit changes little,while the vertical displacement will produce the phenomenon of large uplift. The radius of vertical displacement of the pipeline under the foundation pit construction is about 6. 5 times the depth of the foundation pit.