This study was aimed to investigate the effect of transformational leadership on employee motivation in Bureau of agriculture and natural Resource of Benishangul Gumuz Region. In order to meet the objective of the study, data collected through questionnaires were analyzed using both descriptive statistics such as, mean, standard deviation, percentage, tables and inferential analysis, to infer the effects of the transformational leadership style on employees' motivation. The study employed quantitative research approach and the data collected was analyzed by using the Statistical Package for Social Science (SPSS 22). The finding of the study indicated that: significant strong positive relationship is found between the dimensions of Transformational Leadership styles, Idealized influence Behavioral, Idealized influence Attributed, inspirational motivation, intellectual stimulation, and individualized consideration. Based on the finding, it is recommended that, the Bureau, should give attention on how the organization’s leadership style has an influence on its employee's motivation and focus on hiring transformational leaders. From this it is suggested that leaders influence the employee's motivation and the result of the present study emphasizes the significance of suitable leadership style in such organizational settings. Moreover, the organization needs to assure that Transformational leadership style must be advanced given better attention through the organization's leaders and higher authorities. Furthermore, motivation of employees and the transformational leadership style are positively correlated, indicating that the leaders of the Bureau have a lot to work on to motivate employees to help the organization in to sharing the vision, cooperate in achieving the shared goals.