The present invention relates to an omnidirectional intelligentized remote networking system in automotive field, and is in particular suitable to an intelligentized management system in car maintenance. The present invention mainly comprises three subsystems that are running condition detecting system, condition decoding system and fault early warning notice system of the car, wherein, the running condition detecting comprises an OBD vehicle automatic diagnosis module and an additional inspection module, the additional inspection module uses an optical fiber to transmit the inspection result data, which is transmitted to a condition decoding module together with a data output by the OBD vehicle automatic diagnosis module; the condition decoding module unscrambles an OBD fault code and an additional detection sensing detecting data, the fault code is transmitted to the fault early warning notice system, and the control center and users are informed through mobile communication network by utilizing a GSM/GPRS module chip. Compared with the prior art, the present invention has the functions of remote self-check diagnosis and fault early warning for vehicle fault, thus realizing that the fault detection and the fault resolution are real time, accurate and effective, and offering the potent assurance to the daily maintenance work of vehicles, the personnel safety of the owners of the vehicles, and the unimpeded transport of urban and rural road.