The corps commander was Li Chengfang, political commissar - Lei Rongtian.

From March 1950 the corps stationed in Yunnan province until its inactivation.

In July 1975, 14th Army Corps, especially its 42nd Army Division, took part in the crackdown on Shadian incident as the main assault force, during which the PLA killed over 1000 Hui Muslim fighters with a loss of over 120 KIA.

During the 25-day-long campaign, the army corps thrust 48-80 km into the Vietnamese territory, seized the city of Lào Cai and secured the bridgehead across the Red River.

The army was then composed of: In September 1992 42nd Infantry Division was disbanded.