The invention provides a machining method of an elevator safety gear wedge. The machining method comprises the steps of low-carbon steel forging; heat treatment; milling molding; carburizing; laser surface quenching; and blackening, wherein low-carbon steel used in the step (S1) contains elements of 0.03-0.24% of carbon, 0.02-0.8% of manganese, 0.1-2.0% of silicon, 0.035-0.07% of niobium, 0.002-0.05% of titanium, 0.01-0.1% of boron, and 97.64-99.76% of iron. The machining method of the elevator safety gear wedge has the following beneficial effects: the surface carbon content of the wedge is increased; the surface hardness is increased; the surface wear resistance is improved; the coefficient of a friction pair between the wedge and a guide rail is improved; the toughness and the plasticity of a core part are improved; the wedge is not crushed in a high-pressure working state; and the reliability of a safety gear is improved.