A new method, the sticky-plate method (SPM), proposed by the authors, was used in surveying population dynamics of the winter grain mite (WGM), Penthaleus major (Duges). This paper deals with the effects of SPM with reference to the conventional plant by plant count-mite method (CMM). Results showed that the variation in data and population trends obtained by using SPM were consistent with those from CMM. Reliability analysis displayed no significant differences between the results from the two methods on the bases of statistical principles. Therefore it was proved that SPM was suitable for the investigation of population dynamics of WGM. A model for converting results from SPM into ones from CMM, or vice versa, was built.