"Poasoa" (transliterated into ) was once a center of settlement for the Babuza people (a plains aboriginal tribe). During the Dutch period, the area was under the administration of Favorlang (modern-day Huwei, Yunlin) and was controlled by the Dutch East India Company. During the Siege of Fort Zeelandia, the area was also one of Koxinga's central defense and attack bases. During the Chinese immigration of the 17th century, Changhua city was one of the four cities that had major immigration; it was one of the oldest Han Chinese settlements.