ABSTRACT This study aims to analyze the mental workload and the level of work fatigue in ergonomic employees at CV. Surya Pelangi Konveksi Pekanbaru. The research method is quantitative descriptive research. Samples were taken as many as 46 people which is the total population of the production section. Measurement of mental workload using NASA - TLX (National Aeronautics and Space Administr…