Abstract: In the reseach of development stage of oilfields,the application study of three dimensional seismic interpretation is indispensable. Due to complex geology of Liaohe oilfields the application of horizontal wells packed data like seismic data must be used to portray subsurface geologic bodies more accurately and ascertain microtectonics and minor faults. It allows us to achieve thin reservoir forecast,and trace reservoirs, and direct horizontal well drilling.The examples of thin reservoir forecast and minor faults identification through seismic interpretation technology show the value of precise seismic interpretation technology . Along with the development of seismic interpretation especially four-dimensional seismic,its application is more wide in development of oilfields. Seismic interpretation , geological and logging are combined to form a comprehensive research technique that is the trend required for oil field development.