The invention relates to a rapid three-dimensional fault interpretation method based on horizontal navigation. The method includes the steps that (1), the fault enhancement interpretative processing is carried out on seismic data, and a seismic data volume fully highlighting fault information is obtained; (2), time slices of which the interest interval reflects the fault plane distribution characteristic are extracted from the seismic data volume, and the time slices serve as horizontal navigation slices for fault interpretation; (3), a fault is selected from the horizontal navigation slices; (4), a seismic section is extracted in the direction perpendicular to the fault strike, and the section of the fault is interpreted at the projection point of the section of the fault; (5), meshing processing is carried out on a navigation plane interpretation result of the selected fault and an interpretation result of the fault of the extracted seismic section, and the results are projected to a newly extracted seismic section, so that the fault interpretation of the seismic section is effectively navigated; (6), under the navigation of the fault plane interpretation, seismic sections are extracted in a rolling mode in the direction perpendicular to the fault strike step by step, and the fault interpretation of the seismic sections is finished until all the seismic sections of the fault is finished; (7), the steps (3)-(6) are carried out repeatedly until interpretation of all faults of the whole area is finished.