Abstract: Discontinuous geological bodies such as faults and collapse columns are common concealed hazard-causing bodies in coal mine production. They are prone to inducing disasters including water inrush and coal and gas outburst, thus threatening the safe and efficient production of coal mines. The reflected waves commonly used in seismic exploration are seismic responses of continuous underground interfaces with limited resolution. In contrast, diffracted waves originating from discontinuous geological bodies carry abundant small-scale information and have high-resolution detection potential, which is expected to fundamentally improve the accuracy of seismic exploration. However, the energy of diffracted waves is weaker than that of reflected waves; they are often masked by reflected waves on imaging profiles, making it difficult to exploit their detection potential. Therefore, this study proposes a method for extracting diffraction attributes from migrated profiles, which includes the following steps: constructing the seismic wavefield using the demigration method, and then establishing the angular mapping relationship between migrated profiles and seismic wavefields, and calculating the reflection dips in seismic profiles; suppressing reflected waves in the seismic wavefield using the reflection dips to separate the diffracted wavefield; constructing common image gathers (CIGs) based on the diffracted wavefield, calculating coherence using the polarity-included imaging condition, and generating the diffraction attribute volume. Numerical simulation results show that the proposed method can effectively separate complete diffraction wave information and suppress continuous strong reflection energy, and the obtained diffraction attributes have high accuracy in characterizing faults and rough interfaces. The application of this method to field data from a coal mining area in Shanxi Province verifies that the strong reflection information reflecting coal seam interface characteristics is effectively suppressed, while the diffracted waves carrying discontinuous information such as faults and collapse columns are highlighted. The extracted diffraction attributes can accurately characterize the morphological features of collapse columns and faults.