Recent studies indicate that participants suppress a to-be-ignored item within visual searches when they have prior knowledge about its features (the negative cue effect). However, little is known about the process of distractor suppression when using negative cues. In this study, we use event-related potentials (ERPs) to investigate whether to-be-ignored items are inhibited after attentional selection. The results indicate that cued distractors elicited a Pd component without a prior N2pc component. Moreover, a Pd component was not observed when participants were presented with a to-be-attended feature (a positive cue) within the same visual search display. Taken together, these results suggest that active suppression plays a key role to suppress cueing distractors that prevents attentional capture.