1929, Dongtai was divided into nine districts, one in the north and the other in the south. 1940 10. Caotuo belongs to Pantuo District in the north, Sancang District in the south and Haifeng District in the west. 1945 Caojiatuo District was established and named after the natural village Caojiatuo. 1957, the area was withdrawn and merged with the township, and the west was placed under the six stoves. The rest are divided into three townships: Caoduo, Huatuo and Xincao. 1958, three townships merged to form Caotuo People's Commune. 1959, the original Xincao Township was set aside from Caotuo, and in 198 1 year, eleven brigades in the west of Caotuo were placed under Liuzao Commune. 1983 was renamed as Caotuo Township during the economic system reform, and 1987 was renamed as Caotuo Town in September. On April 20 10, the organizational system of Caotuo Town was revoked and merged with Touzao Town.