This research aims to explore how organizational culture affect employee performance. The study is a descriptive research and causal research using quantitative approach. The population is used as the object in this research were employees of convenience store in Bandung by taking the total sample of 80 respondents. This research uses simple linear regression analysis to examine the extent to which a causal relationship between the independent variables (organizational culture) and the dependent variable (employee performance). This research was conducted to identify and analyze the organizational culture and the impact against the performance of employees. The problem in this research is that most employees have understood an organizational culture that occurs, however the achievement of optimal performance still does not meet the expected criteria. The descriptive results indicate that the employees’ responses regarding organizational culture and employee performance are included within good category. The hypothesis result shows that organizational culture has an effect toward employee performance. Meanwhile, the value of R Square is 0.395, which means that the influence of organizational culture on employee performance is within 39.5 percent. Moreover, the remaining percentage of 60.5 percent is influenced by other factors not explored in this study.