The pile pulling construction needs to reduce the friction force around the pile and reduce the pulling force, the mechanical mechanism is very complicated. Relying on the pile pulling construction of the B32 bridge pier of Zhongshan North Road viaduct in Shanghai City, the elasto-plastic finite element model was established in the three-dimensional finite element numerical simulation technology, the relationship between the vertical displacement of soil and the distribution of soil surface settlement and the law of soil stress dissipation were analyzed. The results showed that the horizontal stress distribution was more stable when the casing support was existed. When the casing support was not existed, there was violent fluctuation on the side of the existing pile foundation. After the pile pulling construction, the additional stress tends to be stable and the vertical settlement of the ground surface was distributed when the soil stress was released around the pile foundation steady.