The strong dynamic pressure manifestation on the island fully mechanized caving face largely increases the possibility of rockburst. Two strong dynamic pressure manifestation events of the island fully mechanized caving face are analyzed by making use of microseismic and electromagnetic radiation monitoring. The law of energy accumulation and release in coal

as well as the monitoring data variations of microseismic and electromagnetic radiation

which pre and post rockburst

are obtained. The coal of working face generally has a short energy storage time before the rockburst. The number of microseism events and the total energy of microseism events are few in this period

which is monitored by the microseism system. And at the same time the coal electromagnetic radiation intensity value and the pulse number continually increased during this period. The microseism event silence period of working face as well as coal electromagnetic radiation intensity value and pulse number continual ascension period can be seen as rockburst precursor information. By transforming these precursor information into quantitative early warning parameters and index

the method of working face rockburst multiparameter early warning is proposed. Finally

the engineering practice shows that this method is effective.