Seismic attributes provide an efficient tool for fault identification and delineation in seismic data. Coherence followed by smoothing, sharpening, and skeletonization have significantly improved fault images. Traditionally, we apply coherence and fault enhancement processes to the full-bandwidth seismic data. These resulting images may still be disappointing in the presence of strong seismic noise, or juxtaposition of relatively similar reflectors across a fault. We develop a seismic fault enhancement method based on spectral decomposition assisted attributes. Certain spectral components often exhibit higher signal-to-noise (S/N) ratio over other components, sometimes because of the seismic data quality and sometimes due to the underlying geologic features including tuning and reflector alignment. Because the phase is different for different spectral components, alignment effects occur for only a few spectral components not all components, which helps to fill the coherence gap due to the similar reflectors across faults. In the proposed seismic fault enhancement method, we first perform a structure-oriented filtering (SOF) on the original seismic amplitude volume, to improve the data quality. Next, we compute the multispectral coherence, to further reduce the noise and fill the coherence gap, thus improving the continuity of the faults. Finally, we provide the enhanced fault images by computing a directional skeletonization on the multispectral coherence volume, which further suppress other structural discontinuities and improve the resolution of faults. We evaluate this seismic fault enhancement method with the Opunake 3D seismic survey acquired in the offshore Taranaki Basin, New Zealand.