Numerical control device

A numerical control device for controlling a machine tool that can be processed in orthogonal three axes is provided with: a parameter storage unit (4) that stores a noise command allowable width used for determining whether movement is to be performed on the basis of a movement command; and a path correction process unit (3) that performs path correction whereby, when a processing program block includes a movement command in a command asymmetric axial direction that is an axial direction not included in a designated contour plane, the absolute value of the amount of movement by the movement command in the command asymmetric axial direction is compared with the noise command allowable width, and, if the absolute value of the amount of movement by the movement command in the command asymmetric axial direction is smaller, the movement command in the command asymmetric axial direction is determined to be a noise command and the amount of movement by the noise command is made zero. 数控装置对能够以正交的3个轴进行加工的工作机械进行控制，该数控