Purpose: This study aimed to analyze the influence of Transformational, Organizational Citizenship Behavior and Work Involvement on Innovative Work Behavior with Knowledge Sharing as an Intervening Variable. Research Methodology: This study used a quantitative approach. The type of data used in this study was primary. The study was conducted using a survey method by distributing questionnaires to employees of the Class II Tanjung Uban PLP Base Office of the Ministry of Transportation. Determination of sample size using (total sampling). The data were processed using SEM-PLS version 3.0 application. Results: The results of the study indicate that Transformational Leadership has a significant effect on Innovative Work Behavior, Organizational Citizenship Behavior has a significant effect on Innovative Work Behavior, Work Involvement has a significant effect on Innovative Work Behavior, Knowledge Sharing does not have a significant effect on Innovative Work Behavior, Transformational Leadership does not have a significant effect on Knowledge Sharing, Organizational Citizenship Behavior has a significant effect on Knowledge Sharing, Work Involvement has a significant effect on Knowledge Sharing, Transformational Leadership on Innovative Work Behavior mediated by Knowledge Sharing has no significant effect, Organizational Citizenship Behavior on Innovative Work Behavior mediated by Knowledge Sharing has no significant effect, and Work Involvement on Innovative Work Behavior mediated by Knowledge Sharing has no significant effect.