Power consumption data monitoring method and device

The invention discloses a power consumption data monitoring method and device, and relates to the field of digital information transmission. The method comprises the steps that the to-be-monitored electricity consumption of a to-be-monitored electricity meter is acquired, and the to-be-monitored electricity consumption is the electricity consumption in a first preset time period; whether the to-be-monitored electricity consumption is within a historical electricity consumption threshold range is judged, the historical electricity consumption threshold range is the electricity consumption range of the to-be-monitored electricity meter corresponding to a second preset time period, and the second preset time period is earlier than the first preset time period; when the to-be-monitored electricity consumption is not within the historical electricity consumption threshold range, it is confirmed that the to-be-monitored electricity meter data is abnormal; and displaying data abnormity of the to-be-monitored ammeter