With the deepening of digital governance transformation, managers who rely on traditional non-digital work are experiencing a high sense of relative digital deprivation. This study investigates whether public sector managers' relative digital deprivation will influence their team digital capacity-building behavior and digital active learning behavior, as well as the mechanisms and boundary conditions, based on 659 surveys of public sector managers conducted over three periods. The findings indicate that public sector managers experience job insecurity as a result of the relative digital deprivation, which, in turn influences their team digital capacity-building behavior and digital active learning behavior. Workplace status serves as a buffer against the effects of relative digital deprivation on job insecurity. In light of the digital revolution, these findings contribute to the existing literature on digital management in the public sector and offer valuable implications for public sector managers' decision-making.