The invention relates to anti-corrosion and anti-wear alloy powder forming a coating and a high-hardness anti-wear material coated with the powder. Amorphous coating powder for thermal coating includes the following components of, by atomic percentage, 14%-18% of Cr, 2%-8% of Fe, less than or equal to 2% of C, 5%-10% of Co, 5%-8% of B, 0-3% of Y, 12%-16% of Mo and the balance Ni. A Hastelloy alloy C276 can be coated with the amorphous coating powder, the powder has the characteristics of being high in density, low in porosity, high in adhesive strength, high in surface hardness, good in anti-wear property, high in corrosion resistance and the like.