Abstract: In order to repair the hot stamping die of ultra high strength steel, homogeneous Fe based alloy powder was cladded on the surface of quenched H13 steel by laser cladding. The homogenization laser cladding layer with high density and without obvious metallurgical defects was prepared by adjusting the laser power and powder feeding rate. The cross-section microstructure and the shear strength of the cladding layer were tested by optical microscope and universal testing machine, respectively. The hardness and high temperature friction and wear resistance of the cladding layer were evaluated by hardness test and high temperature friction and wear test, respectively. The results show that when the laser power is 1600 W, the powder feeding rate is 13.8 g/min, the overlap rate is 50%, and the scanning speed is 10 mm/s, the laser cladding layer without surface cracks, internal pores and other metallurgical defects is prepared on the H13 surface. The density of the cladding sample is 7.58 g/cm³, and it has the best density. The laser cladding layer is metallurgical bonded with the substrate, and the microstructure is mainly columnar crystal and equiaxed crystal. The shear strength of the laser cladding layer is bigger than 710 MPa, and the shear strength of the laser cladding layer is better than that of the interface between the H13 substrate and the laser cladding layer. The hardness of the laser cladding layer is 56-58 HRC, which is higher than that of the H13 substrate. The wear resistance of the cladding layer at different temperatures is better than that of the substrate. As the test temperature increases, the wear amount of the substrate gradually increases, and the wear amount of the cladding layer increases first and then decreases.