PT Dwi Putra Perkasa is one of the large convection companies in Malang City, East Java. The increasingly fierce competition in the industrial world requires companies to continue to improve their business. The implementation of a good and ergonomic system is one of the main factors that support the progress of a business. There are two problems identified at PT Dwi Putra Perkasa. First, a less structured work system makes workers less optimal in doing work. Second Uncertain natural lighting affects the performance of workers. This research was conducted with two methods, namely micromotion study for work system problems and experimental design methods using a complete random design to determine the effect of lighting. The results of the analysis showed that through the micromotion study method there was an increase in efficiency at each station, namely: Station 1 was 102.93%, Station 2 was 125.38%, Station 3 was 112.31%, and Station 4 was 105.98%. While through the experimental design it was found that performance at station one was not affected by light intensity while stations 2, 3, and 4 were affected. In addition it can also be concluded that the lamp used is a lamp with a light intensity of 140 lux.