The minor district (king amphoe) was created on 1 December 1967 by combining tambons Khao Phanom, Khao Din, and two villages of Khok Yang of Mueang Krabi district and tambon Sin Pun from Khlong Thom district.
On 1 December 1967, the minor district (king amphoe) was formed by integrating tambons Khao Phanom, Khao Din, and two villages of Khok Yang in Mueang Krabi district with tambon Sin Pun from Khlong Thom district.