<p>The human visual system efficiently navigates complex environments by selectively deploying attention to goal-relevant information while filtering out extraneous details. While research has extensively explored how ordered structures influence attention, the mechanisms of disordered structures remain inadequately understood. Using dot-probe and spatial cueing paradigms across six experiments, we systematically investigated attentional allocation in both ordered and disordered displays. This study establishes a robust structural attentional bias characterized by three key principles. First, the bias is automatic and domain-general, reflecting a priority for perceptual order beyond specific grouping rules. Second, ordered structures facilitate deeper attentional engagement, as evidenced by a modulated inhibition of return. Third, the system shows graduated sensitivity, with attentional efficiency declining progressively as structural disorder increases. These results advance our understanding of how perceptual organization guides attention, showing the visual system maintains reliable engagement with structured information despite minor disruptions. The findings have direct implications for designing visual displays that optimize attentional efficiency in applied settings where rapid information processing is crucial.</p>