Abstract: In order to evaluate the roadway structure stress, this paper makes a detailed analysis of the computer hardware system and software system of online monitoring system, and introduces the main function of the on-line monitoring system working principle and monitoring system software. The computer monitoring system is used for real-time monitoring of bolt and anchor axial force, the monitoring results show that the rock burst greatly affect the stress of bolts and cables, when the rock bursts, it will lead to a sudden increasing or sudden unloading in the axial force of bolt, if the impact repeats, it will cause cable fatigue breaking. According to the anchor and anchor monitoring results, corresponding measures can be taken to prevent the failure of roadway.