Abstract: In order to improve the concurrency and real-time of the data processing of coal mine safety monitoring system, enhance the processing power of big data, ensure stable and reliable operation of the system, the data acquisition system with high performance and high concurrent is constructed by using the data transmission mode without master （multi-master） mode, combining with multi-threading, message queuing, batch updating and other programming techniques. The core design of the data acquisition system is introduced in detail, and the system simulation test is carried out. The results show that the system can solve the problems of long inspection cycle and low real time of data. At the same time, it also meets the requirements of the national upgrading and upgrading of coal mine safety monitoring and control system.