Abstract: Laser cladding technology is an advanced technology that uses high energy density heat source to strengthen and modify the surface of materials. Compared with other surface strengthening technologies, laser cladding technology has unique advantages in coating preparation due to its high energy density, low dilution rate and fast cooling rate. The material system of laser cladding technology from six aspects of metal base alloy powder, ceramic powder, composite powder, high entropy alloy powder, amorphous alloy powder and functional gradient material was reviewed, and the performance characteristics of various cladding materials were analyzed. Finally, the existing problems and future development trend of laser cladding technology were summarized.