He then launched an attack on the Japanese-controlled East Hebei Autonomous Government and captured the cities of Yanqing, Yongning, Sihai, and Xinglong.

[1] The Central Military Commission commended Song for his achievements, reporting that "Song and Deng's column reached deep into East Hebei for several months, fomented a rebellion in coordination with local party elements, restored Chinese administration in the area, established an operation zone with the help of the masses, expanded our army's influence far behind enemy lines, and dealt damage to the enemy.

Song joined Chen Yi in Shandong in September of 1945 and served as chief of staff of the local formations.

He was appointed to operational commander of the Executive Headquarters Peiping [zh] in January of 1946 and assisted Ye Jianying in negotiating with nationalist military representatives.

After the outbreak of the Second Chinese Civil War, he served as chief of staff of the communist Shandong Field Army, but was removed from command after suffering a defeat in Si County.

During the Tiananmen Square protests of spring 1989, Song joined former minister of defense Zhang Aiping and five other retired generals in opposing the enforcement of martial law by the Army in Beijing.