Disclosed is an automatic measurement abnormity alarm method for a power grid. The automatic measurement abnormity alarm method includes dividing all equipment in the power grid system into a plurality of independent sets, with, to be specific, each set comprising equipment, a breaker and a knife switch; periodically extracting and checking remote metering and signaling information of each set with abnormal criteria; if the check result displays the remote metering and signaling information belongs to abnormal measurement, writing the abnormal result in an abnormal measurement result table; performing data screening to the content of the abnormal measurement result table, and displaying the screened content of the abnormal measurement result table on a display interface. By the use of the automatic measurement abnormity alarm method, comprehensive judging of the abnormal information is achieved, false information alarm rate is reduced, wide searching and automatic screening are realized, and efficiency is increased.