In 1995 a letter was smuggled out of the prison written by political prisonerYu Zhijian and addressed to the National People's Congress which alleged mistreatment and physical violence directed by guards towards prisoners. Chinese authorities questioned the authenticity of the letter but it was believed to be genuine by global NGOs. As of 2018 prisoners were allegedly forced to work for more than ten hours a day without any days off. This violated Chinese prison regulations which limit work to eight hours a day, five days a week.
Zhang Jingsheng is a Chinese singer-songwriter who has composed a number of songs based on his time in Chishan. He is a significant artist of the Prison song genera, a genera of traditional music that predates the Communist takeover. Zhang Jingsheng is alleged by fellow inmates to have been tortured and otherwise mistreated during his time at Chishan.
Zhang Shanguang
Zhang Shanguang is a labor organizer who spent several years in Chishan Prison. He was sentenced to prison in 1989 due to his work organizing the Hunan Workers’ Autonomous Federation. He was released and subsequently imprisoned at Chishan again in 1998 due to having contact with a Radio Free Asia reporter. In 2001 Zhang Shanguang was severely beaten by guards after organizing a petition to end torture and long working hours at the jail.
is a Chinese artist arrested for a provocative piece of performance art that insulted Chairman Mao. Yu was transferred to Chishan prison in 1990. In 2004 it was reported that Yu Dongyue had been tortured to the point of mental collapse by Chishan prison authorities.
Shi Tao
is a Chinese journalist and poet who served time in Chishan prison during his ten-year imprisonment which started in 2005.
Li Wangyang
was a Chinese labor activist who served ten years in Chishan Prison from 2001 to 2011. He was sentenced for "inciting subversion of state power."
Lee Ming-che
is a Taiwanese pro-democracy activist imprisoned in Chishan Prison since 2017. In 2018 Lee was transferred to a prison in Hebei before being transferred back to Chishan. From 2017 to 2019 his health deteriorated and he lost 30kg.