This study aims to find out the effect of work stress and leadership on employee performance at PT. Astra Daihatsu Motor, this study uses a quantitative approach. Data collection was carried out by survey method by distributing questionnaires to several employees who were directly related to the test, the questionnaire consisted of several questions related to work stress, leadership and employee performance. Because of the limitation of respondents in the study is only 26 people, the sample used in this study is a saturated sample in which the entire population is used as a sample. Data processing is performed by SEM (structural Equation Modeling) method basen on (PLS) partial least square with 2 stages of testing process that is measurement of inner model and outer model. The results show that work stress and leadership are proven to have an influence on employee performance with a value of 32.4%, with the dominant factor causing work stress is a gap in communication with coworkers, while for leadership factors are leadership motivational factors for employees where the leader is able to provide Good motivation for employees in working makes the most dominant leadership factor.

Keywords : job stress, Leadership, Employee performance