Abstract: The principle and characteristic of Well-Ground seismic technology are reviewed systematically based on crosshole seismic method.Special emphasis of the technology of Well-Ground seismic is superior in imaging resolution,studying scope,wild production efficiency and production cost,ect.The data acquisition system(ob-servation system,ground seismic source and borehole seismic detector) and processing methods (ray tracing proc-essing and tomography imaging) are discussed.Then,the application areas and development of Well-Ground seis-mic technology are recommended.Finally,the development and application prospects of Well-Ground seismic technology are forecasted.