The invention relates to a method for detecting abnormal electricity consumption metering. The method comprises the following steps: acquiring three-phase current information of metering equipment, and sorting and normalizing the three-phase current information according to the magnitude; calculating a Spearman rank correlation coefficient of the three-phase current; calculating t statistics of the converted Spearman rank correlation coefficient; and constructing an original hypothesis and a standby hypothesis about the t statistics, and performing hypothesis testing to judge whether the metering equipment is abnormal or not. Corresponding support can be provided for power system operation personnel to detect abnormal power consumption metering conditions.