This study aims to determine how the influence of kaizen culture on employee performance at PT. Bank Mandiri (Persero) Tbk. Branch Kartini Makassar City. This study uses quantitative research methods. Data collection techniques used are through observation and questionnaires. The sample used in this study is the entire population, namely 35 respondents. The data obtained from the research results were processed using the SPSS 25 application which consists of validity and reliability tests, descriptive data analysis techniques and inferential statistical analysis. The results obtained indicate that the indicators for each variable used, where the kaizen culture variable shows that the indicators used in this study are in the very good category and the indicators on the employee performance variable show the very good category. Based on the results of inferential statistical analysis, Pearson correlation was obtained of 0.722, which means that there is a strong/high relationship between the two variables. So it can be concluded that there is a significant influence between kaizen culture on employee performance at PT. Bank Mandiri (Persero) Tbk. Branch Kartini Makassar City.