Abstract: Iron-rich high-entropy coatings are endowed with unique engineering application potential in the field of surface protection, owing to their significantly lower raw material cost than that of Ni-based, Co-based and Ti-based high-entropy systems, and their ability to match various substrates including steel, titanium alloys and aluminum alloys through compositional tuning. This paper systematically reviewed the recent research progress of laser-clad iron-rich high-entropy coatings. First, according to the material design and phase composition characteristics, the coatings were classified into three major systems, namely iron-rich high-entropy alloy coatings, ceramic-reinforced iron-rich high-entropy composite coatings, and iron-rich high-entropy amorphous/nanocrystalline composite coatings, and their microstructural evolution laws were elaborated. Second, the regulation mechanisms of laser process parameters on the coating microstructure and forming quality were investigated, and the control strategies for typical defects such as cracks and pores were systematically summarized. Furthermore, the wear resistance, corrosion resistance and high-temperature oxidation resistance of the coatings under complex service conditions, as well as their underlying micro-mechanisms, were thoroughly analyzed, and their application status in various fields was summarized according to service conditions. Finally, prospects were put forward regarding the challenges of cross-scale defect control, multi-field coupling performance design and intelligent fabrication, in order to provide theoretical reference for promoting the engineering application of iron-rich high-entropy coatings.