To strengthen the management of working-face roof and implement real-time monitoring on support-working resistance of coal mining working face, and to ensure the stability and safety of the working-face roof management, Yangquan Coal Corporation No.1 mine installs dynamic monitoring system on coal mining working face. According to the stress distribution in the process of mechanized working face in mining, through the data analysis of the coal mine roof dynamic monitoring system, the stress distribution situation can be concluded in the process of mining active process, so that you can adjust the corresponding supporting parameters according to the analysis results.