Abstract: There are lots of crushed ore rocks and unstable filling body in north of Jiaojia gold mine. The numerical simulation and analysis on different ways of stope structure and artificial false top bearing layer thickness and bearing layer were done under the condition of adjacent filling the stress, strain and plastic deformation status, etc. According to this analysis, over stress for 12 kinds of model bearing bed possibly causes damage；Meanwhile, almost all adjacent filling bodies have been damaged with poor mining security. Therefore, the building process of artificial roof should be optimized; the bearing layer should be strengthened; and the security in mining should be also improved.

Key words: Artificial roof, Filling body, Numerical simulation, ANSYS