Mine monitoring system requires the real-time monitoring of methane, oxygen, smoke, wind speed etc. environmental parameters, in the backbone communication interrupt, when the communication is recovered, then the real-time data uploads and storages historical data and the synchronization. In order to ensure the real-time data upload at the same time, historical data can be uploaded, synic upload data structure was put forward. The practice showed that data structure is stable, reliable, with low error and strong practicability.