In order to detect the subsidence of Quaternary System extra thick hydrous unconsolidated strata in real time

a monitoring method with fiber Bragg grating（FBG）sensing network system embedded in the borehole is proposed.A FBG real-time monitoring system of stratum settlement deformation is designed

a Microsoft Access database used for saving monitoring data is developed.The MFC ODBC method is used in this system for accessing and operating the database

and the TeeChart control is used in this system for showing real-time monitoring curve and history monitoring curve dynamically.The engineering monitoring experiment shows that

the monitoring equipments run normally

and the monitoring system runs stably

which achieves effectively treating and accurately predicting of the monitoring data.