To provide a numerical control machine that can identify a factor of noise.
A numerical control machine that is connected to a power magnetics cabinet including a plurality of electronic components that potentially generate noise includes: a device information acquisition unit that acquires device information including the relative arrangement and classification of each of the plurality of electronic components; an identification condition information acquisition unit that acquires conditions for identifying electronic components that are factors of noise as identification condition information; a noise detector that detects noise generated in any of the plurality of electronic components and that identifies the electronic components in which noise is generated; and an electronic component identification unit that applies the identification condition information to the device information on the electronic components in which noise is generated to identify the electronic components that are factors of noise from the device information.