Luocheng Mulao Autonomous County was controlled by the
People's Liberation Army (PLA) on 23 November 1949 and Dongmen became
county seat. It was renamed "Dongmen Township" () in 1952. The Dongmen People's Commune () was established in 1968. In November 1984, Dongmen People's Commune was revoked and split into two townships, namely Dongmen Township and Qiaotou Township (). The two townships were merged and was officially renamed "Dongmen Town" () in October 1991. In August 2005, Qiaotou Town () was formally merged into the town. ==Geography==