Abstract: With the development of society，requirement on the real-time monitoring，automation and accuracy of Mining and surface subsidence and other important buildings are high，and the traditional precise leveling is costly and long cycle，and requires fieldwork.It is not conducive to long-term，real-time and automatic monitoring.Combining the wireless sensor network technology with the traditional hydrostatic leveling system，a wireless hydrostatic leveling system is built based on ZigBee wireless transmission at low cost and GPRS technology.In this system the static level as a sensor is connected to a child node in the wireless network.The data collected will be sent to the master node by the child node，and then to the remote Database by the DTU module and GPRS network.This system can realize remote，real-time，high precise monitoring on surface subsidence in mine with a broad application prospect.

Key words: Surface subsidence, Hydrostatic leveling, Wireless network, ZigBee