Apparatus and method for fault management of smart devices

The present invention relates to a method for managing a fault in a smart device. The method comprises the following steps: comparing a value of a fault detection indicator (FDI), indicating faults of at least one performance indicator generated in a smart device, in a normal status with a measured FDI value, and detecting a fault by computing a relative change level; and generating a diagnosis object (DO) including a cause for the detected fault and action against the detected fault, and analyzing the detected fault.