Researchers　have　improved　the　wear　resistance　of　coatings　by　adding　hard　phases　or　heat　treatment　to　extend　the　service　life　of　molds.　However,　the　above　methods　increase　the　production　cost　and　prolong　the　production　cycle　time,　which　weakens　the　advantages　of　laser　cladding　technology.　In　this　paper,　we　first　explore　the　effect　of　pulsed　lasers　on　coating　properties　by　adjusting　the　pulse　frequency.　It　is　found　that　the　microstructure　of　the　laser　cladding　Ni-based　composite　coating　is　refined　and　the　microhardness　is　significantly　improved　in　the　range　of　pulse　frequency　from　2　to　100Hz.　By　further　adjusting　the　duty　cycle,　we　found　that　more　NbC　phases　precipitated　at　the　grain　boundaries　and　distributed　more　uniformly　when　the　duty　cycle　was　50%.　The　microhardness　reaches　729.7HV0.2.　Compared　with　the　coating　prepared　by　continuous　wave　laser,　the　microhardness　is　increased　by　22.1%,　and　its　wear　resistance　is　improved　by　65.6%.　This　investigation　can　provide　a　useful　reference　for　the　application　of　laser　cladding　technology.