This study examines the effect of hotel managers' leadership type on hotel employers' service orientation, psychological contract and organizational citizenship behaviors. Data were collected from 439 five star hotel employees in Seoul. Results show that servant leadership makes the most significant effect on the service orientation and psychological contract. Also, results reveal that psychological contract better predicts organizational citizenship behavior than service orientation does. These suggest that hotel managers need to provide visions to their employees, respect them and try to make a community for inducing the employees' service orientation, psychological contract, and organizational citizenship behavior.