The Hundred Days' Reform, a planned movement to reform social, political, and educational institutions in China, is started by the Guangxu Emperor, but is suspended by Empress Dowager Cixi after 104 days. (The failed reform led to the abolition of the Imperial examination in 1905.)

The Hundred Days' Reform or Wuxu Reform (traditional Chinese: 戊戌變法; simplified Chinese: 戊戌变法; pinyin: Wùxū Biànfǎ; lit. 'Reform of the Wuxu year') was a failed 103-day national, cultural, political, and educational reform movement that occurred from 11 June to 22 September 1898 during the late Qing dynasty. It was undertaken by the young Guangxu Emperor and his reform-minded supporters. Following the issuing of the reformative edicts, a coup d'état ("The Coup of 1898", Wuxu Coup) was perpetrated by powerful conservative opponents led by Empress Dowager Cixi.