The minor district (king amphoe) was created on 18 July 1977, when the four tambons, Po, Dot, Siao, and Nong Ma were split off from Uthumphon Phisai district.[1] In 1979 all sub-districts except Po were returned to Uthumphon Phisai.[2] The minor district was upgraded to a full district on 4 July 1994.[3]
The district is divided into two sub-districts (tambons), which are further subdivided into 25 villages (mubans). Bueng Bun is a township (thesaban tambon) which covers parts of both tambon. There is one further tambon administrative organization (TAO).