The Permian volcanic rocks in the western Sichuan Basin have broad prospects for exploration. However, the volcanic rocks in this area have the characteristics of large lateral thickness difference, rapid lithofacies change and strong heterogeneity. Moreover, its seismic response is chaotic and complex, making it difficult to accurately identify the volcanic rocks and predict the seismic facies. In order to clarify the distribution and exploration prospects of volcanic rocks in this area, a technical process of depiction and seismic facies classification prediction is proposed based on the well-drilled data, seismic data and geological research. Firstly, based on the data of instantaneous phase and coherence attributes of high-resolution processing seismic data, the volcanic rock indication profile was constructed to accurately identify the volcanic rock development area. Secondly, combined with the seismic response characteristics of volcanic rocks, the seismic strata of the top and bottom interfaces of volcanic rocks were explained, and the volcanic rock mass in the study area was finely depicted. Then, based on the seismic waveform classification analysis, the seismic response characteristics and seismic facies classification prediction in the overall study area (macro-characteristics) and the key study area (local characteristics) were studied. By carrying out favorable seismic facies prediction and exploration direction analysis in a study area in central Sichuan, the seismic strata interpretation and the depiction were successfully achieved, the seismic reflection patterns of volcanic rocks with different lithofacies were analyzed, and the seismic waveforms were classified.The conclusion is that: a set of technical processes of depiction and seismic facies analysis of Permian volcanic rocks in the western Sichuan Basin based on high resolution processing, seismic response characteristics identification, seismic facies classification and prediction has been proposed. The plane distribution characteristics of explosive facies volcanic rocks have been effectively predicted.