From March 1951 to November 1952 the division entered Korea to take part in the Korean War as a part of People's Volunteer Army. From January to October 1953 the division spent its second deployment to Korea. After that the division moved to Fengtai, Beijing.
After Korea
In February Artillery Regiment was renamed as Howitzer Artillery Regiment. On May 13, 1958 Motorized Infantry Regiment was renamed as Mechanized Regiment. In 1959 the division moved to Changping, Beijing. Soon after it further moved to Jixian, Tianjin in 1962. In December 1962 Howitzer Artillery Regiment was renamed as Artillery Regiment. In August 1969 402nd Tank Self-Propelled Artillery Regiment from 197th Army Division was attached and renamed as 3rd Tank Regiment. By then the division was composed of:
1st Tank Regiment;
2nd Tank Regiment;
3rd Tank Regiment;
Mechanized Regiment;
Artillery Regiment.
In August 1970 3rd Tank Regiment was detached and transferred to 79th Infantry Division as Tank Regiment, 79th Infantry Division. In September Mechanized Regiment was re-organized and renamed as 3rd Tank Regiment. On July 1, 1976 Armored Infantry Regiment was activated. During Sino-Vietnamese War in 1979, 130mm Self-Propelled Rocket Artillery Battalion from Artillery Regiment, 1st Tank Division was put under command of 124th Army Division, 42nd Army Corps for the infiltration in Cao Bằng region. On January 1983 the division was put under command of 66th Army Corps. In the 1980s the division was equipped with Type 59-2 medium tanks, becoming the only Type 59-2 unit in PLA ground force. In July 1985 the division was attached to Tianjin Security District following 66th Army Corps' disbandment. In 1989 the division actively took part in the enforced martial law and the crackdown on protests in Beijing. In the morning on June 5, 1989, a tank column from 1st Tank Division was departing from the Tiananmen square to move to Jianguomen area was temporarily stopped by a young man, now famous as the Tank Man. Allegedly the division commander, General Xu Qingren was sitting in the leading tank and ordered the stop until the tank man was taken away. In April 1996 the division was attached to 24th Army. In October 1998, the division was renamed as 1st Armored Division. The Armored Infantry Regiment was disbanded and absorbed into tank regiments which became armored regiments. By then the division was composed of:
1st Armored Regiment;
2nd Armored Regiment;
3rd Armored Regiment;
Artillery Regiment.
In 2003 the division was attached to 65th Army following 24th Army's disbandment.
"Division to Brigade"
In late 2011 it split into two: the division main body re-organized into 1st Armored Brigade, while half of its battalions reorganized into 195th Mechanized Infantry Brigade. In April 2017 the brigade was deactivated and absorbed into 70th Combined Arms Brigade.
