A numerical controller of the invention includes: an acceleration setting data storage unit for storing acceleration setting data where an acceleration/deceleration setting of an axis of a target machine to be controlled is associated with an application condition including at least a tool number; an execution acceleration/deceleration setting storage unit for storing the acceleration/deceleration setting used when a control of the axis is executed; an acceleration/deceleration control unit for performing an acceleration/deceleration control process on the axis on the basis of the acceleration/deceleration setting set in the execution acceleration/deceleration setting storage unit; and an acceleration/deceleration setting unit for setting the acceleration/deceleration setting of the acceleration setting data where a tool number commanded in a tool selection command of a block read from a machining program satisfies the application condition in the execution acceleration/deceleration setting storage unit.