In the same year, he joined Chinese people's Volunteer Army in the Korean War and served as the deputy company commander of the Volunteer Railway Corps/KOOC-0/Division/KOOC-0/Regiment/KOOC-0/Company. During the battle, his troops carried out emergency repairs between railway bridges on the front line of North Korea, and successfully completed the task of repairing bridges many times. Especially, in July of 195 1, he led a team to set up a footbridge for 1 1 times in the emergency repair task of Qingchuan River Bridge on South Korean Road, and creatively set up a pontoon bridge with tracks, which ensured the construction and smooth opening of the main bridge and supported the front-line operations. 195 1 In August, he returned to Beijing to attend the first celebration meeting of the railway soldiers of the Volunteers, was elected as the representative of the volunteers returning home on National Day, and also attended the National Railway Model Workers Conference.
1952 may 15, when he was directing the company to repair the Qingchuan river bridge, he was hit in the head by shrapnel from a time bomb dropped by enemy planes and died unfortunately. The leading organs of the Volunteers remembered his special achievements and awarded him the title of "Chinese people's Volunteer Army first-class hero". The North Korean government awarded him the title of "National Hero of the Democratic People's Republic of Korea" and the Gold Star Medal, the First Class Flag Medal and the Hero Certificate. His company was named "Yang Liandi Company".