The embodiment of the invention discloses a quantity brushing terminal determination method and device. The method is applied to a service device. The service device is used for providing an application resource for a mobile terminal. The method comprises the steps of obtaining downloading traffic records of the mobile terminal within a preset time period; determining a target application resourceof which downloading times is greater than the preset times from at least one application resource according to the download traffic records, wherein the at least one application resource is downloaded by the mobile terminal within the preset time period; and determining the mobile terminal as the quantity brushing terminal of the target application resource. According to the embodiment of the invention, the quantity brushing terminal can be detected.