Abstract: Under the influence of long-term mining pressure, creep deformation is more likely to occur in the section coal pillar, which is the main reason for the expansion of cracks and fissures in the coal pillar. In this paper, the creep model of anthracite coal is established and the constitutive equation and creep equation are deduced, and the numerical simulation analysis of different widths of section coal pillar under different stress release coefficients is carried out based on the model and the “constraint-convergence method” by embedding the finite difference into FLAC^3D software. The results show that: with the increase of the width of the coal pillar, the elastic core area of the coal pillar shows obvious time-dependent characteristics; the pressure of the roof shows wave-peak characteristics, and the roadway sides show ring-peak characteristics. There is an obvious linear relationship between the displacement and sinking of the roadway roof and the stress release coefficient. The system of “full-length anchoring and grouting reinforcement and three-dimensional coupling support” is proposed to reduce the creep instability and deformation of coal pillar and roadway.