The invention discloses a seismic data attribute extraction method based on nuclear relation. The method comprises the steps of 1, selection of a seismic trace; 2, computation of nuclear-related measures; 3, building of a nuclear-related matrix; and 4, computing of seismic trace attribute values. According to the method provided by the invention, the extraction of coherent attributes in seismic attributes can be achieved, the nuclear-related function is introduced, and via the steps of building the nuclear-related matrix and computing the matrix feature value, the extraction of the coherent attributes of seismic data is achieved. The method is convenient to implement, can achieve discontinuity detection on stratum edges, rivers and the like and accurate depiction on geologic features suchas the non-homogeneity and fault of sand bodies; and the technical scheme is easy to implement and strong in operability.