The invention provides a method and a device for fault management of a cloud data center. The method comprises the following steps that an organization and management server receives fault information submitted by a user terminal and judges whether an organization and management fault type corresponding to the fault information can be determined; if the organization and management fault type corresponding to the fault information can be determined, the organization and management server repairs a fault according to the organization and management fault type; if the organization and management fault type corresponding to the fault information cannot be determined, the organization and management server transmits the fault information to a system management server, the system management server determines a system management fault type according to the fault information, and repairs the fault according to the system management fault type. According to the method and the device, the fault can be timely processed, so that system resources are effectively utilized.