Abstract: A smart monitoring apparatus and a monitoring method using the apparatus. A smart monitoring apparatus is provided in a PC system to monitor a state of a PC-based embedded controller, the apparatus including: a monitoring block for monitoring a state in the system and creating state information; a logging block for receiving the state information created by the monitoring block and storing the state information in a form of a log in real-time so that the stored log and current state information may be confirmed; and a battery for supplying power to the logging block when an operating system in the system does not operate or power supplied to the system is cut off.