The utility model relates to a quick analytic system of network failure, including analysis server, control cabinet. Analysis server includes casing, network interface, packet collection module, central processing unit again, can read and write data storage module, network communication module, central processing unit respectively with packet collection module, can read and write data storage module, network communication module is connected, place in inside the casing. The control cabinet includes terminal management ware, terminal display, analysis server connects, controls to the terminal management ware through the network. Compared with the prior art, the utility model discloses can be automatically to the network data package gather, the analysis to save network data package, to unusual automatic the the reporting an emergency and asking for help or increased vigilance of network, the solution is paird to automatic the searching. Failure diagnosis is accurate, and network fault handling is efficient, still can trace to the source for intermittent type nature network failure provides real packet.