Frequency division interpretation technology improves and enhances the resolution of the anomalous geological body by scanning the three-dimensional seismic data on the full spectrum in the frequency domain. Seismic data interpretation in the frequency domain can carry out reservoir studies. It has become an important geophysical exploration technology at present. It has unique advantages in thin reservoir identification, thickness calculation of thin reservoir and showing the heterogeneity inside reservoir. The principle of frequency division imaging technology is described and the characteristics in actual work are expounded.