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.
The minor district (king amphoe) was established on 1 December 1967 by merging tambons Khao Phanom, Khao Din, and two villages of Khok Yang from Mueang Krabi district with tambon Sin Pun from Khlong Thom district.