Abnormal data judging and processing method and device

The invention is applicable to the field of computers and provides an abnormal data judging and processing method and device. The abnormal data judging and processing method includes steps of receiving original meteorological data; extracting data blocks related to data of observation points from the original meteorological data; calculating value changes of the data of the observation points and the relevant data blocks; judging whether the value changes of the data of the observation points and the relevant data blocks are within a preset range or not; if the value changes exceed the preset range, judging that the data of the observation points are abnormal, if not, judging that the data of the observation points are normal; if the data of the observation points are abnormal, correcting the abnormal values; outputting the correcting meteorological data. By extracting the data blocks related to the data of the observation points, whether the value changes of the data of the observation points and the relevant data blocks are within the preset range or not can be calculated and judged, and the data of the observation points can be subject to abnormality judgment and correcting, and the abnormal data can be accurately judged and corrected.