Abstract: The geologic disaster of ground subsidence widely happens in the region of soft clays in seashore. The disaster will make the farm damaged, salty water invaded in, the ability of the urban pollution discharge reduced,and also the shipping transportation influenced. So it is very important to research and government it. The main body of the article analyses the produce mechanism of ground subsidence, the development present situation of ground subsidence and the development trend of ground subsidence in the way of researching the geologic disaster of ground subsidence which happened in the region of WENLINGLINGSHINIAN-SONGMEN arterial road, but provide the referenced on the research of ground subsidence.