Abstract: Based on the long-term exploration practice of volcanic reservoirs in Songnan gas field, this paper systematically combs the geological and seismic characteristics of different types of volcanic reservoirs. Through the comprehensive analysis and summary of the identification and characterization of reservoir rock mass by seismic attributes, a multi-attribute fusion volcanic gas reservoir identification technology system is innovatively constructed. According to the research, the effective seismic attributes for the identification and description of the internal channel, stage, boundary and other characteristics of different types of volcanic gas reservoirs, as well as the geological characteristics of eruption units and lithofacies, are also different. Among them, the instantaneous attributes, texture attributes, structural attributes and time-frequency transformation methods are the most effective. Through the application of different attribute body interpretation technology, the ability and exploration accuracy of volcanic gas reservoir identification and internal characterization are improved, and a strong basis for efficient exploration and development is provided.