Abstract: Before the intense earthquakes occurred in Haicheng, Tangshan, Bohai etc, the deep oil-water wells of Shengli oilfield showed anomalies, such as Liquid production, oil production, static pressure in oil wells and water Level etc.in wnter wails, it is found that there are repeated characteristics in the anomalies of deep oil-water wells when earthquakes occur at the same area.In combination with the structure and the distribution of active faults, this paper indicates that Binnan area may be a sensitive region to seismic precursors, and this is significant for the detecting of the seismicity in Shengli oilfield.