Abstract: Based on the geological conditions of Jianghan Road Station of Wuhan metro line No.2, there are two possible supporting schemes for deep foundation pits, the combination of row piles with diaphragm wall and the diaphragm wall only. In order to select the best supporting scheme for the foundation pit, the two schemes are compared and analyzed by the finite element method. The conclusion shows if the combination scheme is used, the deformation of the enclosure structure is unsymmetrical seriously, and the deformation of diaphragm is large. However, if the other is used, the deformation of the enclosure structure is reasonable and meets the requirement of code standard. Therefore, the diaphragm wall is selected. This study is provided as references for similar projects.