In the late
Eastern Han Dynasty (208 AD),
Sun Quan, the ruler of
Sun Wu, established Liyang County (犁陽縣) in Tunxi, marking the beginning of Tunxi's administrative system. In 464, Liyang County was abolished and merged into Haining County (海寧, present-day Xiuning County). In 553, Liyang County was reestablished under Xinning Commandery. On April 30, 1949, the 35th Division of the 12th Corps of the
Second Field Army of the
Chinese People's Liberation Army occupied Tunxi. On May 13, the
Huizhou District was established, with Tunxi City established and the district government stationed in Tunxi. To promote local tourism economy, on November 27, 1987, the former Huizhou District was abolished and replaced by Huangshan City (same name as
Huangshan), with Tunxi becoming a city district and the seat of the municipal government. ==Administrative divisions==