In this paper the process of ground subsidence is divided into two phases

and an empirical coef-ficient is proposed

on the basis of which the fundamental differential equation of dynamic ground move-ment is modified. The problem is solved that the original time function simulating curve does not agreewell with the actual one. Based on data from observation stations and the modified time function

the pa-per makes foreground processing with visual C++’s object oriented programming

and background pro-cessing with Access database management system. Through communication between the foreground andthe background with MFC ODBC class

dynamic and real time surface movement observation system inClient/Server mode is established. The computational example illustrates that this method can reflect thedynamic characteristics of surface movement

and is of much practical value to mining design and selectionof building precaution measures.