Abstract: A method and apparatus for stratigraphic sedimentary cycle analysis in chronostratigraphic domain are provided. The method includes: performing multi-horizon tracking on seismic volumes by utilizing a horizon tracking technology so as to obtain a chronostratigraphic volume; transforming all horizons in the chronostratigraphic volume from time to the chronostratigraphic domain; extracting a sedimentary discontinuity or stratum erosion amount sequence based on end point positions of respective horizons in the chronostratigraphic domain; converting the sedimentary discontinuity or stratum erosion amount sequence into a stratigraphic sedimentary cycle curve; and obtaining a stratigraphic sedimentary cycle sequence based on the stratigraphic sedimentary cycle curve.