Abstract: Mohr Coulomb constitutive model is used to predict and analyze the ground movement and deformation of 1327 working face after paste-filling mining of the industrial square coal pillar in Xi-ma Coal southⅠmining area based on FLAC^3D numerical simulation software and modeling technology of Midas/GTS.After comparison with the probability integration method，it is found out that FLAC^3D simulation results match with the measured data.Analysis results indicate that，FLAC^3D numerical simulation do not need complex parameters but adopt the actual physical parameters of coal and rock，so it is simpler.The research result displays a more efficient research method for predicting and analyzing the paste-like filling subsidence and is considered as an effective complement to the traditional probability integration method.

Key words: FLAC^3D, Modeling technology of Midas/GTS, Paste-like filling mining, Mining subsidence