Abstract: A fault analysis system searches for a cause of a fault on the basis of dump data output to a dump file at the time of occurrence of the fault. When the fault analysis system is started, a CPU resource condition corresponding to each task is read from the dump data and is set in a CPU resource condition holding unit. A resource condition switching control unit automatically switches the CPU resource condition for reference and displays a memory content for each task. Upon termination or interruption of the analysis, a resource condition file input/output control unit stores the CPU resource conditions each corresponding to the tasks already used for reference in a resource condition file, and upon re-starting of a search, it re-sets the CPU resource conditions read from the resource condition file in the CPU resource condition holding unit.