Control device and control method of machine

A control device of a machine having a function of stopping and restarting a program in order to perform an adjustment of a tool that requires adjustment, the control device comprising:

• an operating condition analyzing unit that analyzes an operating condition of the program at a time of starting operation of the program, and performs a notification when the tool to be exchanged is not adjusted;
• an operating condition storage unit that stores the operating condition of the program at a time of exchanging the tool;
• a state restoration confirming unit that confirms whether an internal state of at least one of the machine and the control device is restorable so that an operation of a predetermined block of the program is performed again after the operation and a stop of the predetermined block after exchanging the tool;
• and
• a state restoration executing unit that, in a case in which the internal state of the at least one of the machine and the control device is confirmed to be restorable by the state restoration confirming unit, restores the internal state of the at least one of the machine and the control device to a state at the time of exchanging the tool based on the operating condition of the program at the time of exchanging the tool stored in the operating condition storage unit.