5S refers to five items: SEIRI, SEITON, SEISO, SEIKETSU and SHITSUKE. Because Japanese pinyin starts with "S" and is abbreviated as 5S. 5S originated in Japan, and its ultimate goal is to create a clear working environment and cultivate employees' good working habits by standardizing scenes and existing things.

5S originated in Japan and refers to the effective management of production factors such as personnel, machines, materials and methods at the production site. This is a unique management method of Japanese enterprises. 1955, the slogan of Japanese 5S is "Safety begins with sorting and ends with sorting". At that time, only the first two s were implemented, and its purpose was only to ensure the adequacy and safety of the workspace. By 1986, the works of 5S in Japan were gradually published, which had an impact on the whole field management mode and set off a 5S craze.