Cai Changsong, male, Han nationality, is a native of Wangcheng, Hunan Province. He was born in 1941, joined the work in 1966 and the CPC in 1965. He studied at Hunan Normal University and graduated from Political Education Department. He was an Alternate Member of the 15th CPC Central Committee and a member of the 16th CPC Central Commission for Discipline Inspection.