Originally, the area of the district was part of
Sichon district, Nakhon Si Thammarat Province. In 1929 the two sub-districts Don Sak and Chaiyakhram were reassigned to Kanchanadit District. The district was created as a minor district (
king amphoe) on 24 March 1969 by splitting the two
tambons, Don Sak and Chonlakhram, from Kanchanadit District. The citizens of
tambon Chaiyakhram then asked to be included in the new district as well, which was added on 1 September of the same year. On 16 November 1971 it was promoted to full district status. The fourth
tambon, Pak Prak, was created on 14 July 1978 from
tambons Don Sak and Chaiyakhram. == Administrative divisions ==