A method for operating a self-propelled floor cleaning device, in a first operating step, drives the floor cleaning device across a first treatment path across the floor to be cleaned according to a predetermined driving strategy, or according to a predetermined algorithm, which is calculated on the basis of data, which are detected by sensors and thereby carries out a first cleaning step by a first cleaning device. In the first operating step, areas of the floor surfaces to be cleaned, which are cleaned in at least a second operating step by a second cleaning device, or which are excluded from the cleaning by the second cleaning device, are determined. A floor cleaning device, which is suitable for carrying out the method, has a chassis, a first cleaning device for dry cleaning a floor surface, and a second cleaning device for wet cleaning areas of the floor surface.