Based on mounts of monitoring data from airport no fly zone expansion project foundation pit, the supporting structure deformation, ground settlement, axial force and pile displacement under complex construction environment and limited construction time were comprehensive analyzed. The results showed that: the horizontal displacement of retaining wall was slight at upper and lower ends, but broad in the middle, increases with the excavation and has a space-time effect. The surface settlement has settlement trough, the subsidence cause by excavation of deep soil is the main part of the total settlement, and the pouring of bottom plate inhibit the surface subsidence effectively. The axial force increases with the construction, and the construction of the second support reduces the axial force of the first support. The displacement of the soldier piles is upward, increases with the excavation and tends to be stable. This study can be a reference for the excavation of foundation pit at airport no fly zone.