Maintenance manufacturer evaluation method and device, equipment and storage medium

The invention relates to the technical field of operation and maintenance service, and provides a maintenance manufacturer evaluation method and device, equipment and a storage medium. The method comprises the steps of obtaining evaluation data of maintenance manufacturers and constructing a feature vector set of the maintenance manufacturers; the feature vector set comprises a plurality of first feature vectors; any first feature vector is composed of one or more evaluation index values of a maintenance service provided by a maintenance manufacturer; performing principal component analysis on the feature vector set to obtain a key index data set of the maintenance manufacturer; determining a maintenance manufacturer type according to the key index data set; and determining service scores of the maintenance manufacturers in combination with the manufacturer types. A key index data set is extracted through principal component analysis, then maintenance manufacturers are classified, and prominent service items