Abstract: Coal mine safety monitoring network system in Yongcheng Coal Group based on virtual technology is expounded. The system takes the server virtualization as the platform, uses the B/S architecture pattern to design, uses the “PHP+JAVA” combination programming language to develop the front-end publishing page and the background service software, builds the multi-level network transmission channel through the mobile 4M PTN data line, stores the underground environmental data of all the mines under Yongcheng Coal Group in SQL Server 2016 database. The group realizes real-time online monitoring of the safety condition of the mine production line.