The role and leadership style are factors wich determine the employees performance in getting companyâs goal. Leaderâs behaviour is an important factor to motivate the employees. The leadership style is one of an input. The other inputs are culture, law, politic, economic, social and technology. They have to be processed to increase the skillâs employees so the effectiveness of job employees will be created. The aims of this research are: (1) to explain the role and style of leadership that played by Bakmi Japos Restaurantâs manager, (2) to explain the level of employees job effectiveness at Bakmi Japos Restaurant, (3) to analyze the correlation between the role and leadershipâs style manager with employees job effectiveness at Bakmi Japos Restaurant, (4) to explain the relation among internal, external and situational factors with the role and style of leadershipâs manager at Bakmi Japos Restaurant. The population was all employees of Bakmi Japos Restaurant. Sample were 38 persons and taken by sensus technique. The results of this research were: (1) The employees so enough satisfied with four leadership role and effective communicator as a mostly role while the employees so enough agree that five leadership style are needed to reach restaurantâs goal with democratic style inclined, (2) The employees work effectively, (3) An amount the role and leadership style have a hihgly significant (p