The invention provides an error-compensation irregular topography migration method. The method comprises the steps of performing low measurement information constrained tomographic velocity inversion to acquire a velocity model of a shallow layer; performing Rytov approximation based angle domain reflected wave tomographic velocity inversion; obtaining an irregular topography prestack depth migration velocity model by adopting wave equation continuation reconstruction method and a sin function weighting method; organically combining wave equation datum correction and depth imaging to realize the migration process of a self non-horizontal observation interface; performing error compensation, and carrying out migration imaging by using a cross-correlation condition; and displaying migration stack results of all cannons on a datum plane, an irregular plane or a floating plane. The error-compensation irregular topography migration method performs wave field continuation and correlation imaging by using an error compensation operator. The method is applied to actual seismic data, acquires an ideal migration imaging effect, and has good popularization and application prospects.