The invention relates to a method for checking small current neutral grounding. The method for checking the small current neutral grounding comprises a main station and a plurality of station ends. The method comprises the checking steps that the station ends generate grounding signals, a station end measuring and control device collects monitoring information from primary equipment and sends the monitoring information to a remote terminal unit, the signals transmit data to a dispatching main station prepositive server through the remote terminal unit, the prepositive server preprocesses the data and sends analysis results to a real-time server, the real-time server carries out statistic analysis on data signals obtained and analyzed by the prepositive server, and off-limit alarm is carried out. The system used by the checking method is simple in structure, low in equipment cost, and easy to achieve in a carrying mode, checking judgment is accurate, influences of interference of branch circuits and the like are avoided, manpower is saved, and therefore fault maintenance time is greatly shortened, losses and damage of electric equipment are reduced, and safety of the electric equipment is improved.