Abstract: According to occurrence of coal and gas outburst and technology of related dynamic safety information collection on coal face, the paper designed an early-warning system of gas outburst on coal face based on dynamic characteristics of pressure monitoring. The system can dynamically extract real-time data from massive pressure monitoring data, and finally realizes intelligent analysis and real-time early-warning of coal and gas outburst on coal face, and it also has efficient data management capabilities. The system has achieved good effects in the field test.