The main aim of this research work is to enhance the worker productivity at Amhara Pipe Factory, in production department by implementing the vital managerial tool, work study technique. As the work study, proves that the best organizing tool and it has associated with human work and standardization of performance to improve the worker productivity. As per the Amhara Pipe Factory, three sections (Geo membrane, UPVC, and HDPE) are mainly influencing the productivity. Therefore, work mainly focused on 70 workers who are working in these three sections. Obviously, three research methods have been utilized through work study technique to evaluate the performance measurement of the factory. Initially, direct observations have been conducted in the pipe (UPVC and HDPE) and Geo membrane production process sections. During the observations, all the necessary data have been collected for three selected sections in three consecutive months. According to analysis that has been done in UPVC production section, HDPE production section and Geo membrane production section, the 48 observations were accompanied over a period of 3 months, the results showed that averagely 60.3 % of the time the workers were working, 5.7% workers were idle as a result of waiting for supplies, 12.7% workers were idle due to waiting for repair, 8.3% workers were attended to additional personnel needs and 13% workers were normally idle. Consequently, the current study reveals that the work study techniques are still playing vital role in distinguishing the problems which are more challengeable in improving the productivity. The productivity could be improved when these challenges have been organized significantly. Thus, by using process flow chart in geo membrane production section and UPVC production line 4, best utilization of resources and available employees was established. In addition to this, work sampling technique has been applied in HDPE production lines and 19.65% increment per month has been achieved. Moreover, other kind of problems was also noticed through direct questionnaire and interview with employees working in the factory.