摘要:The purpose of this study is to determine empirical evidence of the effect of the influence of self-efficacy and work environment on employee performance with motivation as an intervening variable in an empirical study of employees of PT Sarana Indoguna Lestari Surabaya. This research is causal in nature, and uses primary data of 135 respondents with purposive sampling technique. Amos’s Structural Equation Modeling (SEM) analysis program was used to measure the relationship between research variables. The results showed that Self-efficacy does not have a significant effect on performance, while the work environment has a significant effect on performance and the motivation variable is able to mediate Self-efficacy and work environment on performance, so that it has a significant positive effect on performance.