The 5S tool originates from Japanese philosophy, namely from the five basic elements of the system: Seiri (selection), Seiton (systematization), Seiso cleaning), Seiketsu (standardization) and Shitsuke (self-discipline). The 5S method is a structured program to implement workplace organization and standardization. A well-organized workplace motivates peoples. 5S improve safety, work efficiency, improved productivity and establishes sense of ownership. This article presents the case study of studying on implementing 5S in small manufacturing unit. From this project, the impact of 5S implementation are reduce inventory, efficient on workplace usage, reduce time for searching spare part, reduce water spilled, reduce un stabilization, cleaning and checking machine condition, improve working condition, increase discipline, follow procedure, and better relationship among employee.