The paper presents the results of the study of microstructure and phase composition, as well as the influence of scanning strategy and thickness of the applied powder layer during selective laser melting on the relative density of a compact amorphous-nanocrystalline soft-magnetic alloy based on cobalt 86KGSR. It is shown that the application of an alternative scanning strategy can increase the relative density of the compact material. The X-ray diffraction analysis as well as optical and scanning electron microscopy provided data on the phase composition, relative density and microstructure of the alloy. The results of the study can be used for further research and development of a technology for obtaining composite amorphous-nanocrystalline soft-magnetic cobalt-based materials by selective laser melting.