Troubleshooting method for abnormal reasons of management line loss

A troubleshooting method for the abnormal reason of the management line loss provided by the invention comprises the following steps: analyzing line loss data by utilizing a transverse analysis method, and determining abnormal occurrence time; based on the abnormal occurrence time, analyzing the line loss data by using a longitudinal analysis method, and determining an area range where an abnormalmetering point is located; and based on the area range, determining the position of the abnormal metering point by using an electric quantity trend analysis method so as to determine the reason of line loss abnormality. According to the method, comprehensive analysis is carried out by using line loss data, archive data, electric quantity data and other electric energy data; the method can be universally used for different line loss statistics scenes and line loss abnormity types, is separated from specific operation of a system, achieves the quick analysis of the management line loss abnormity reason, achieves the pr