Abstract: As a main method for reservoir forecast, seismic attributes play an important role in oil-gas exploration and evaluation. However, the limitations and ambiguity of seismic attributes make attribute optimization and multi-attribute combination more diffi cult, reducing the accuracy of forecast. To the above-mentioned problems, this paper mainly studied and analyzed the application of four methods such as the optimization of basic seismic attributes, attribute selection under the restraint of old structure, based on the geophysical and geological meaning of seismic attributes. The application of these methods signif icantly increases the pertinence of the seismic attributes in reservoir forecast and the forecast ability and accuracy, thus getting preferable application effect.