Abstract: Taking the fluvial sandbody of the Minghuazhen formation in Q oilfield in Bohai Bay as an example, this paper analyzes the inner superimposed characteristics of fluvial complex sandbody by means of single well analysis and seismic data, presents three types of the cut stacking, edge lateral cutting and edge superimposition of multi?stage sands, elaborates the significance of such a complex sandbody characterization, and proposes rational suggestions for well deployment and working out development plan in this area. For uncertainty of the cut stacking existence, it optimizes the drilling sequence and sets the drilling decision tree, and then proposes the suggestion of making evaluations followed by development; for the complex sandbody formed by edge cutting and edge superimposition, and the existence of inner interbeds, it proposesasuggestion of using horizonalwell process for development ofthis oilfield and optimizinginjection?productionrelations