Quality data processing method and device

The invention discloses a quality data processing method and device. The method comprises the steps: based on initial quality scores of multiple power grid suppliers, acquiring initial ranking resultsof the multiple power grid suppliers, wherein the initial quality scores are determined based on at least one quality index of the power grid suppliers; determining the credibility of each power gridsupplier based on the effective sample number of each power grid supplier; and based on the initial quality scores of the plurality of power grid suppliers, correcting the credibility of each power grid supplier, and obtaining actual ranking results of the plurality of power grid suppliers. According to the invention, the technical problem that some suppliers who intensively supply a large numberof goods to a few provincial network companies have high ranks and cannot reflect the real quality conditions of the suppliers due to the lack of the space dimension parameter of the supplier coverage provincial network number