Abstract: Rockburst is a facing one of the most natural disasters in deep mining;the main mining of 12^# coal seam of Hongyang coal mine,which the depth has been closed to 1000 meters at present.The dynamic disaster phenomena are most serious.In order to understand the principle of dynamic phenomena,according to the classification of coal seam and roof rock impact proneness and index determinative methods and standards.Through the laboratory rock mechanics experiment results show that uniaxial compressive strength of coal seam,impact energy index,elastic energy index,dynamic destructive time and bending energy index of roof is 6.51 MPa,1.93,3.11,252 milliseconds,101.922kJ respectively,which indicate the 12^# coal seam and roof rock have both weak bursting proneness.Using the above test results and in combination with the practical production conditions of the 12^# coal seam,the production process should be strengthened the prediction work of rock burst to ensure the safety of mine production.