The invention relates to particle-reinforced nickel-base metal powder for ultra high-speed laser cladding, and belongs to the field of metal material manufacturing. The particle-reinforced nickel-basemetal powder is composed of nickel substrate metal powder and oxide or carbide particles, and mainly comprises 50-98% of the nickel substrate metal powder, 2-50% of one of Al2O3, ZrO2, WC and TiC ormixed powder formed by combing two or more of the Al2O3, the ZrO2, the WC and the TiC. The nickel substrate comprises the chemical components of, by mass, 0-0.1% of C, 2.0-30.0% of Cr, 2.0-30.0% of Mo, 0.1-5.0% of Nb, 0-6.0% of Fe, 0-0.6% of Al, 0-0.6% of Ti, 0-0.8% of Mn, 0-0.8% of Si, 0-2.0% of Co, 0-0.030% of P, 0-0.030% of S, and the balance Ni and inevitable impurities, and the optimal totalcontent of the Cr and the Mo is 5.0-40.0%. The particle-reinforced metal powder is applied, the laser cladding technology is adopted, different processes are matched, and the surface of the substrateis subjected to strengthening and repairing.