Taking the foundation pit project of Shaoxing Metro Line 2 station as an example, by analyzing the on-site monitoring data of the horizontal displacement, support axial force, and surface settlement of the diaphragm wall, the relevant deformation laws of the foundation pit engineering enclosure structures in Shaoxing area are obtained, and the corresponding control measures are provided. The results show that the horizontal displacement of the wall basically follows an inward convex pattern, with the maximum lateral displacement ranging from 40 to 60 mm. The surface settlement of the foundation pit follows a groove shaped pattern, with the surface settlement mainly concentrated around 50 to 80mm. For the maximum lateral displacement of the diaphragm wall δ_hm within the range of (0.05%, 0.37%) H, the average value is 0.21%H. The maximum lateral displacement point burial depth of the underground continuous wall δ_hm mainly falls within the range of (0.69%, 0.94%) H. For the maximum surface settlement behind the wall δ_hm within the range of (0.01%, 0.5%) H, the average value is 0.26% H.