Provided is a numerical controller having a function for dynamically analyzing a machining program. The numerical controller provided with a subprogram calling function that calls a subprogram in a machining program includes: a program interpretation unit that notifies information related to the call of the subprogram when the subprogram is called; a program calling information storage unit that aggregates and stores the information related to the call of the subprogram that is notified by the program interpretation unit; a program execution unit that notifies information related to execution of a subprogram when executing the subprogram; and a program execution information storage unit that aggregates and stores the information related to the execution of the subprogram that is notified by the program execution unit.

Provided is a numerical controller having a function for dynamically analyzing a machining program.

The numerical controller provided with a subprogram calling function that calls a subprogram in a machining program includes: a program interpretation unit that notifies information related to the call of the subprogram when the subprogram is called; a program calling information storage unit that aggregates and stores the information related to the call of the subprogram that is notified by the program interpretation unit; a program execution unit that notifies information related to execution of a subprogram when executing the subprogram; and a program execution information storage unit that aggregates and stores the information related to the execution of the subprogram that is notified by the program execution unit.