In 783, when a mutiny by soldiers from Jingyuan Circuit (涇原, headquartered in Pingliang, Gansu) forced Emperor Dezong to abandon Chang'an and flee to Fengtian (奉天, in modern Xianyang, Shaanxi), Li Song accompanied Emperor Dezong to Fengtian, and was said to have personally protected Emperor Dezong during the journey to Fengtian, along with his younger brother Li Yi (李誼) the Prince of Pu.
From August 1950, the communist 6th Cavalry Division, 7th Infantry Division, and troops from communist Pingliang and Qingyang Military Sub-Districts totaling more than 15,000 begun their operation against the more than a dozen bands of bandits headed by chieftains including Guo Shuanzi (郭栓子), Ma Yanbiao (马彦彪), Ma Guoyuan (马国援) and others in Xiji (西吉), Longde (隆德), Helan Shan and Hexi Corridor regions.