Provided are a home/building fault analysis system and method using a resource connection map log which compares and analyzes a previous integrated resource state and a current resource state using resource connection map logging information based on a standard resource management model when a fault is generated, provides state information of the resource in which information having high association with a fault resource is mainly changed, and performs an effective fault analysis and process by restoring to the previous resource state, as necessary. According to the prevent invention, when the fault is generated, a synthetic state of resources within a home/building as well as a state of an individual resource may be known from the resource connection map.