Abstract: As the representation of terrain surface and height information, the contour data has the strict constraint relationship with the distribution of river network. In spatial data integration and matching, the inconsistency usually occurs between the river and contour generating “river climbing slope”. This study presents a method to build thee matching relationship and to correct the inconsistency between river and contour data. Based on Delaunay triangulation, the terrain landform features is extracted and by bend analysis build the matching relations between river and contour. According to different inconsistency situations, we offer two correction approaches depending on which data is precise, which includes the river displacement referenced to the contour and the opposite.