The invention belongs to the technical field of digital information transmission and in particular relates to network fault restoration system, device and method. The network fault restoration system comprises a detection module group, an orientation data generation module and a software execution unit, wherein the detection module group is used for verifying or detecting software and hardware parameters of a computer network and discovering and indicating a fault point; the orientation data generation module enables configuration data which contains the software and hardware parameters needed by normally running of the network to be produced into an orientation data file; and the software execution unit carries out fault detection and restoration on a network terminal according to data of the orientation data file. Based on the technical scheme provided by the invention, combination of hardware detection and software detection is realized, a detection range is greatly shortened, the detection and restoration efficiency is enhanced, and the invention can be used by a non-computer major user conveniently.