Electric energy meter operation error monitoring method and system

The invention relates to the field of electric energy meter monitoring, in particular to an electric energy meter operation error monitoring method and system. The method comprises the following steps: acquiring a current data sequence according to a preset sampling interval, and taking a window constructed by taking target data as a center and a preset length as a size as a radiation range of the target data; a preset reference number of current data is randomly selected as reference current data, the radiation range of each reference current data is obtained, and the reference current data do not contain the target data; calculating a suspected noise possibility of the target data; segmenting the current data sequence based on the suspected noise likelihood; and de-noising is carried out on each segment so as to complete operation error monitoring. Through the technical scheme of the invention, the precision and reliability of noise identification can be improved, the monitoring cost of the operation error