The utility model discloses an intelligent and auxiliary substation monitoring system, which comprises a substation-end auxiliary management device, and an environment detection device, a security detection device, a video detection device, an auxiliary detection device, a data acquisition module, a data transmission device, an alarm system, a substation-end device, an intelligent fault analysis module for receiving acquisition information, analyzing a fault region and isolating the fault, and an intelligent control and adjustment device for adjusting each device according to the fault information sent by the intelligent fault analysis module. The problem of not high reliability existing in the prior substation monitoring system can be solved, unified fault analysis and treatment are carried out on information of each substation by the additional intelligent fault analysis module, temperature and humidity of the system are adjusted via the intelligent adjustment device, and fault problems caused by environment factors can be solved.