Abstract: The electromagnetic radiation(EMR) technology can forecast coal or rock dynamic disaster,such as coal and gas outburst,rock burst etc.It is successfully coming true that continuously monitoring rock burst in Nanshan and Junde coalmine of Hegang Mining Group by using the KBD7 EMR monitoring system and correlative data-analyzing software which is developed by China University of Mining and Technology for oneself.According to the fact of monitoring field and the testing data,analyses the EMR rules of this field,summarizes the portentous information of rock burst which is implicated in the testing data,and uses to forecast the happen of rock burst.