This study was conducted to determine the performance of MCC employees at PT. Wilmar Vegetable Dumai with the aim to analyze the effect of variable motivation and leadership , employee performance against MCC at PT . Wilmar Bio- Dumai. Sampling was conducted using a census or a sample of 114 people saturated in use as a sample of respondents , the analysis method used is descriptive quantitative methods , data analysis carried out simultaneously and partial ( multiple linear regression analysis with SPSS version 19.0 ). From the results of simultaneous testing ( Test F ) , shows that all the independent variables studied had a significant impact on employee performance variables mcc . Partial regression test (t test ) showed that motivation variables significantly influence employee performance mcc at PT . Wilmar Bio- Dumai . The magnitude of the effect caused by these three variables together against the dependent variable was 96.4 % , this means that the variable motivation , and leadership , together affect employee performance variable with the percentage of 94.6 % mcc . While 3.6 % , influenced by other factors not participate in this study . Thus , it can be concluded that the motivation and leadership variables simultaneously and partially positive and significant impact on the performance of employees mcc at PT . Wilmar Bio- Dumai . In addition , also the motivation variable is a variable that has more influence on employee performance when compared with variable leadership .Keywords : Motivation , Leadership and employee performance mcc