Abstract: In order to explore the occurrence law of mine pressure in the mining face under the geological conditions of the deeply buried ultra-Thick coal seam, taking the first mining face 1101 of Zhundong No.2 Mine as the research object, the physical similarity simulation and on-site roof activity dynamic monitoring method were used to study the occurrence law of the mine pressure in the fully integrated mining face of the ultra-thick coal seam, and the characteristics and influential factors of the mining pressure of the ultra-thick coal seam were revealed.The results show that with the increase of the advancing speed of the working face, the ratio of the pressure step distance to the advance speed is significantly negatively correlated, while the periodic pressure step distance and the pressure strength show an obvious nonlinear increasing law.The stope mine pressure showed obvious regional distribution characteristics, and the support resistance showed a distribution law of “large in the middle and small at both ends”.The average initial pressure step distance of the working face is 50 m, and after entering the steady-state mining stage, there are significant double-cycle alternating pressure characteristics: the large-cycle pressure step distance is 28～36 m, and the corresponding influential range is 8～12 m.The small cycle comes to the pressure step distance of 12～18 m, and the influential range is 6～8 m.The results can provide theoretical support for the dynamic control of the advancing speed of the adjacent working face of the panel.