Abstract: The target layer of BZ21-2 buried-hill is deeply bur-ied in carbonate rock reservoir of lower Paleozoic. Fractures and holes are main reservoir space types and has the charac-teristics of strong non-homogeneity,controlled by many factors and complicated seismic response. With poor seismic data quality and without any drilling data,the plane distribu-tion characteristics of the reservoir are difficult to predict. Based on the analysis of reservoir characteristics and seismic response,by using the technology of coherent analysis,at-tributive analysis,curvature analysis and frequency resolu-tion ,the favorable developed area of reservoirs has been pre-dicted from various aspects. However,these techniques have some limitation and ambiguity,and only an integrated pre-diction by using them can improve reliability of the predic-tion.