The problem of effective leadership has always been one of the unsolved problems of organizations. If the managers' leadership style is parallel with the needs and motives, achieving organizational goals will be facilitated. This research studies the relationship between the leadership style and motivation of middle and lower- level managers in Pump Iran Co. The goal of this research is to identify the leadership styles of managers in those levels and their relationship with their motives. The relationship between the above variables was determined by Pierson correlation coefficient and was tested by student test. The results from questionnaires showed an imperfect adverse correlation between autocratic style and motivation and an imperfect direct correlation between participatorg style and motivation.