In order to study overburden rock movement changes in filling mining，through UDEC numerical simulation software， a numerical model was established based on the coal mining face of 7608 filling working face of Xingtai mine, through the simulation of the filling rate of 50%， 70%， 90% and three kinds of different conditions，the filling rate of overburden rock deformation characteristics and migration different filling rate under the condition of overburden rock stress distribution of abutment pressure were analyzed, it was concluded that the enrichment rate was higher，the better control effect of the air moving deformation zone of overlying rock mining，the deformation of the smaller overlying rock; the stress distribution of the surrounding rock is similar under filling mining and traditional caving method, the greater the filling rate, the lower the bearing pressure and its influence range.