Abstract: In order to further understand the roof movement law of fully mechanized mining face with large mining height in yuheng Mining area. Based on the microseismic monitoring technology, a joint monitoring of surface and underground micro-seismic monitoring network is constructed., the roof movement law under the influence of four influencing factors including initial pressure, periodical pressure, “single side square” and mining speed in the first working face of Dahaize coal mine is studied. The results show that the peak of roof breakage is generally 1 day ahead of the first pressure; Continuous correlation between frequency of roof rupture and periodic weighting; The correlation between roof fracture strength ( energy ) and periodic weighting is weak when weighting strength is less than 17 000 kN; The peak value of roof rupture appeared at 26 m before “single side square”, and the roof activity gradually stabilized after 16 m; When mining speed is less than or equal to 1.6m/d , the roof fracture is always at a low level ; when mining speed is 2.4m/d~6.4m/d, the roof fracture gradually increases, and the upper limit of fracture strength increases obviously. When mining speed is more than or equal to 7.2m/d, the lower limit of roof fracture strength is significantly increased compared with that in the medium-speed mining period.