In the fifth year of Wu Jiahe in the Three Kingdoms (236), Jieyang County was demolished and successively belonged to Luling County and Nankang County.
In the fifth year of Jin Taikang (284), the county was changed to Beiyang County, which belonged to Nankang County.
In the 13th year of Emperor Yangdi's reign in Huang Kai (AD 593), Shichengchang was named because it was surrounded by mountains and towering like a city. In the 11th year of Baoda in Southern Tang Dynasty (953), Shicheng was promoted to Shicheng County. Komatsu area has always been under the jurisdiction of Shicheng County;
Before the Qing Dynasty, the existing areas of Komatsu Town belonged to Changshangli, Fengshangli and Shishangli in Changsong Township.
During the Republic of China, it was the second district of Shicheng County. During the Soviet Union, Komatsu belonged to Komatsu District, Mulan District, Bakou District and Qian Zhi District of Guangchang County.
On the eve of liberation, it was called Chang Song Township. At the beginning of liberation, it was Komatsu District, and 1958 was Komatsu Commune.
196 1 Komatsu establishes the second district, which has jurisdiction over Komatsu, Shi Tian, Tongjiang and Danxi Communes, and is divided into Komatsu, Shi Tian, Tongjiang and Danxi Communes.
1964, Shi Tian merged into Komatsu, and Danxi merged into Tongjiang.
Tongjiang commune was merged into Komatsu commune on 1968.
1984 changed the township, 1989 built the town.
1997, with an area of 167. 1 km2 and a population of 32,000, governs Shang Jie Road Neighborhood Committee, Komatsu, Shi Tian, Luoyuan, Li Jing, Baijia, Yaoshang, Songgang, Shukou, Jiangkou, Danxi, Xufang, Tongjiang, Luoxi and Xufang.
Yangcun Fangting, built in Qing Dynasty, is a provincial key cultural relics protection unit.
In 2009, Komatsu won the honor of "National Civilized Village" and "China Green Town".
20 12 Establishment of Komatsu Pioneer Park in Shicheng County.
20 14 Newly-built Komatsu Town Health Center and Komatsu Central Primary School, and Komatsu Town Public Kindergarten will be built soon.