With the development of science and technology,electromagnetic radiation anomaly as a kind of method for rock-burst prediction is recognized,and before rock-burst occur the electromagnetic monitoring is the breachthrough of predicting rock-burst.In the mining roadway driving process of 21 141 fully mechanized caving face of a coal mine,summarizes the destruction and vibration information before rock-burst occur which adopts KBD-5 electromagnetic radiation monitor collecting,analyzes and researches the microearthquake electromagnetic radiation data before and after rock-burst occur,masters the change rules of seismic parameters,locates the dangerous zones accurately and improves the timeliness and reliability of early warning.%随着科学技术的发展，电磁辐射异常作为一种冲击地压预测的手段越来越被认同，在冲击地压发生前的电磁监测是预测冲击发生的突破口。通过在某煤矿21141综放工作面回采巷道掘进过程中，对采用KBD-5电磁辐射监测仪收集的冲击地压发生前的破坏震动信息进行总结，分析研究冲击地压前后的微震电磁辐射数据，掌握微震参数的变化规律，准确定位危险区域，提高预警的时效性和可靠性。
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