Laser　cladding,　as　an　advanced　surface　modification　technology,　has　the　advantages　of　a　high　energy　density,　controlled　dilution　rate　and　good　metallurgical　bonding　between　the　coating　and　the　substrate.　Its　rapid　heating　and　cooling　properties　help　to　form　a　dense　and　fine　coating　structure　on　the　surface　of　the　substrate,　thus　enhancing　wear　and　corrosion　resistance.　In　recent　years,　the　in　situ　generation　of　carbide-reinforced　iron-based　composite　coatings　has　gradually　become　a　research　hotspot　because　it　combines　the　high　hardness　values　of　carbide　with　the　high　toughness　values　of　iron-based　alloys,　which　significantly　improves　the　comprehensive　performance　of　the　coatings.　This　paper　reviews　the　research　progress　of　laser　cladding　in　situ　carbide-reinforced　iron-based　alloy　coatings　and　explores　the　role　of　different　types　of　in　situ　synthesized　carbides　(TiC,　NbC,　WC,　etc.)　in　the　coatings　and　their　effects　on　their　wear　resistance　and　mechanical　properties.　The　distribution　of　carbides　in　the　coatings　and　their　morphological　characteristics　are　also　discussed,　and　the　effects　of　laser　power,　scanning　speed　and　auxiliary　treatments　(ultrasonic　vibration,　induction　heating,　etc.)　on　the　microstructure　and　properties　of　the　coatings　are　analyzed.　Finally,　the　problems　and　future　directions　of　development　in　this　field　are　envisioned.