Abstract: The frequency-shared interpretation technique,based on windowed short-time Fourier transform or Maximum Entropy Method,made the analysis on the corresponding tuning amplitude to Scanning Frequency in the frequency domain come true,eliminated the mutual interference of different frequent components in time domain,and acquired the result of higher than traditional resolution.The frequency-shared interpretation technique is well used in lithologic reservoir description,such as identification of channel,fault,the boundary of lithology and analysis of sedimentary facies and sedimentary cycle.It is proved that the frequency-shared interpretation technique has a wide foreground in exploration lithology reservoir.