Abstract: This paper establishes the porous concrete uniaxial compression experiment system, through the analysis of porous concrete contained the acoustic signal characteristic during rupture process to reveal its rupture mechanism. The experiment found that porous concrete rupture mode effected by the aggregate diameter and hole size, the more rough of aggregate was, the more times of acoustic and electric signal mutation were, the bigger of holes were, the earlier of acoustic and electric signal peak appears. There is a positive correlation coupling relationship between acoustic emission and electromagnetic radiation level and the stress, but the changes were not completely synchronized. Comprehensive utilization of acoustic emission and electromagnetic radiation detection technology can evaluate the coal and rock mass stability and predict rockburst.