Abstract: In order to research into coal and coal and gas outburst disasters early warning system which suitable for complex serious outburst mining area, taking the Shuicheng area in Guizhou province as the research object, from the aspects of model, software, mechanism, equipment, a suitable early warning system for outburst disasters in complex mines is established, which included more than 20 early warning indicators from two aspects of defect of outburst prevention measures and objective hazard, and achieves multi-parameter accurate early warning and timely release of outburst disasters. Field application shows, the system can evaluate and early warn outburst dangerous. The effect is obvious ,provides effective means for scientific prevention of gas outburst disasters.