To provide a bevel gear pair machining method high in productivity and machinable in high accuracy by constituting a bevel gear pair with two bevel gears engaged with each other in which the noise level and the vibration level can be suppressed low.

Teeth of one bevel gear of the bevel gear pair with two bevel gears engaged with each other are formed in a recessed arc shape in the tooth trace direction, teeth of the other bevel gear are formed in a projecting arc shape of the same radius of curvature as that of the recessed arc shape of one bevel gear, and the respective teeth are formed in arc-shaped teeth in a gear generating manner by the same hob.