Abstract: Linking with the real project example-the project of the "New World Center" in Wuhan and applying the function of FLAC3D software which is based on the three-dimensional Fast Lagrangian Analysis of Continua,the paper establishes the three-dimensional model.According to the comparation and analysis between the result of simulation transmogrification and that of real survey result in build site,the paper gets the sum-up of research conclusion and rule in lateral displacement,the perpendicular displacement and the construction process of the Shotcret-bolting,and validates the rationality and advantage of applying the three-dimensional Fast Lagrangian Analysis of Continua in the research of foundation pits Shotcret-bolting structure transmogrification.This also has broadened and perfected its forecast theory.The conclusion that we have reached provides an important reference value to the research,design and construction of the kind projects.