Xu Zidong

In 2020, Xu returned to East China Normal as an honorary lecturer., In 2021, Xu returned to the University of Hong Kong as a guest lecturer on 20th Century Chinese literature. As of 2021, Xu retired from Lingnan.

Xu studied in LA but moved back to Hong Kong before completing his PhD studies as a vacancy had arisen in the Chinese Department in Lingnan. He finished his doctoral studies at the University of Hong Kong under Lee Ou-fan. He later succeeded Lau Shiu-ming as the Head of Chinese at Lingnan in 2008; he stepped down as departmental head in 2014.

First invited by Cao Jingxing to Behind Headlines with Wen Tao in 1998, Xu turned down the offer for fear it would take up too much research time. He was soon advised by his wife, former Shanghai TV hostess Chen Yanhua to conduct deeper research before making a decision. Xu was invited again by Leung Man-tao in 2000 to 'answer a few research questions'. As of 2017, when the show ceased production, he appeared on the show 1313 times, more than any other guests. Xu, Leung, and the host Dou Wentao were named the show's 'Iron Triangle'.

Born in Shanghai to a middle-class family where his father is a surgeon and mother's family runs a brewery business, Xu has 3 elder half-brothers and his father changed surname to Fan (范) as a foster child but younger generation kept the old family name. As a child, Xu lived in Chonghua New Village, on western Nanjing Road, in Shanghai's main business and shopping district. During the Cultural Revolution Xu first was sent to family hometown of Tiantai in Zhejiang Province but later went to Guangchang, Jiangxi, where he would rose to deputy leader of his production team. In 1973, Xu first partook in Gaokao, registering for faculty of Biology at Shanghai Normal College, only to be upset by Zhang Tiesheng's decision to submit a blank answer sheet for his Physics and Chemistry exam. Xu later returned to Shanghai to become a steel rolling worker before enrolling as a Master's student in East China Normal University under Qian Gurong, having studied in a 527 University and allegedly finished the undergraduate course in Chinese Literature in 3 months, having started as a physics student. He wrote a course essay on Yu Dafu on the second week of the study, which was then published in the University's Gazette. The work was later expanded into a monograph as New Opinion on Yu Dafu, which cemented his status as an academic.

Xu Zidong (许子东; born 21 August 1954) is a Chinese literary historian, critic and academic. He is a Professor Emeritus of Chinese at Lingnan University and chair of Chinese department from 2008 to mid 2010s. He is visiting professor at University of Hong Kong as of the 2021–22 academic year. He has written extensively on 20th-century Chinese literature, Hong Kong Literature, cultural studies, and Cultural Revolution literature studies.