He Zuoxiu (Chinese: 何祚庥; pinyin: Hé Zuòxiū; born 1927) is a Chinese physicist and member of Chinese Academy of Sciences. He is a member of the Chinese Communist Party and a self-described "steadfast believer in Marxism". Along with Sima Nan, He is known as a "crusader" against supernatural and "unscientific thinking," and became famous in China for his criticism of the spiritual movement Falun Gong and support for its nationwide ban. He is also a critic of traditional Chinese medicine.
After graduation, he started working at Propaganda Department of the Party. On May 21, 1952, He published an article titled "Soviet Scientists Criticize Idealism of Quantum Mechanics" on People's Daily, arguing that Mao's political criticism against Bourgeois idealism should be applied to the natural sciences as well. In 1955, he accused architect Liang Sicheng of committing the mistake of "Bourgeois idealism" and argued in favor of destroying the Beijing city wall. In 1956, He started working at the atomic energy division of the Science Institute of China, and participated in the development of Hydrogen Bomb.
He survived the Cultural Revolution and was made a member of Chinese Academy of Sciences in 1980. In 1987, He published an article claiming Marxist philosophy should guide the research and development of natural sciences. 
In 2001, He published an paper claiming "the development of quantum mechanics proves that President Jiang Zeming's theory on 'Three Represents' is the fundamental criterion of evaluating scientific and technological innovation".
Crusade against pseudoscience
In 1994, He led a group of scientists to speak out against the Hongcheng Magic Liquid, a solution that purportedly turned water into fuel. He criticized officials who were taking kick-backs for advancing pseudoscience. He's criticism sparked an investigation and brought media attention to the claims, eventually exposing the Liquid as fraudulent.
In the 1990s, He Zuoxiu was particularly active in his criticism of "extraordinary powers." He zoomed in especially on Qigong and related phenomena, due to the fantastic claims made by so-called masters of the practice. He publicly spoke out against renowned scientists Qian Xuesen, condemning the latter's support for Qigong-related research. He advocated for a stronger role for state control in science. His crusade against pseudoscience was endorsed by four overseas Chinese Nobel Prize winners. He conceded that he was not opposed to the practice of Qigong per se as a breathing and meditation exercise, but rather the 'scientific' claims behind Qigong's effect. He believed that Qigong claims which could not be backed up by modern scientific concepts was all pseudoscience and superstition, and therefore needed to be eliminated.
In November 2006, He Zuoxiu gave an interview entitled "Life and Death: Traditional Chinese Medicine" in the publication Huanqiu Renwu (lit. "Global People"). In the interview He stated that the progression of history, more 'advanced' forms of thinking will always replace 'backward' forms, and asserted that TCM is 'backward'. He called the fundamental system of TCM, i.e., the belief in yin-yang and Wu Xing (Five phases), totally "unscientific." He said that the increased adoption of modern medicine vis-a-vis TCM is evidence that the latter is going to be eventually 'eliminated' from practice. While he concedes the TCM has some "advanced treatment methods," he says that "on the whole it falls short of [modern] Western medicine." In May 2007, He Zuoxiu continued his criticism of TCM, asserting that actress Chen Xiaoxu died from failing to see a doctor and instead relying purely on traditional herbal medicine. His sentiments were echoed by other Chinese scientists, including Zhang Gongyao and Fang Zhouzi. The group is now campaigning for the abolition of TCM practice.
He Zuoxiu is friends with Sima Nan and Fang Zhouzi. In 2006, He, Sima Nan, Yuan Zhong and Guo Zhengyi established "Anti-Fraud Trust", soliciting donations from the public. The express purpose of the trust was to fund Fang Zhouzi's activities.
- "何氏家族：走出寄啸山庄". Xinmin Weekly (新民周刊). Retrieved 23 December 2013.
- International Religious Freedom Report, , Vol. 3, issue 1, April 2001
- Craig S. Smith, "Sect Clings to the Web in the Face of Beijing's Ban; [Special Report], New York Times. (Late Edition (East Coast)). New York, N.Y.: Jul 5, 2001. pg. A.1. Quote: "Sitting in his apartment a few miles from Mr. Zhao's apartment, Mr. He said people like Mr. Zhao should be hunted down and locked up until they have recanted their beliefs."
- Why does He Zuoxiu criticize TCM?
- Guan, Hong (2006). "Before and After the Straton Model －A Case Analysis to the Physics Studies Claimed Being Guided by Marxism Philosophy". Journal of Dialectics of Nature 2: 97–103. Retrieved 23 December 2013.
- He, Zuoxiu (2001). "The Establishment of Quantum Mechanics and the Evaluation System of Scientific and Technological Innovation". Journal of Kunming University of Science and Technology (Social Sciences) 1 (1): 3. Retrieved 23 December 2013.
- Meiyue Zhou (May 10, 1996). "China: Scientists Seek Allies in Fight Against Pseudoscience". Science (magazine) 272 (5263): 807–808. doi:10.1126/science.272.5263.807.
- Palmer, David A. (2007). Qigong fever: body, science, and utopia in China. Columbia University Press. p. 172.
- Palmer, p. 125
- He, Zuoxiu (November 1, 2006). "Interview by Lu Yan: Why does He Zuoxiu criticize TCM? (in Chinese:《何祚庥为何批中医（生死中医）》)". Huanqiu Renwu. Retrieved March 6, 2012.
- http://news.sina.com.cn/c/h/2007-05-29/150613103492.shtml He Zuoxiu continues his criticism of TCM: Chen Xiaoxu was killed by TCM. (Sina) 何祚庥炮轰中医：陈晓旭就是被中医害死的 新浪网
- "何祚庥筹备科技打假基金 主要资助方舟子". Beijing Morning News (北京晨报). Retrieved 23 December 2013.
- He Zuoxiu's profile at Tsinghua University
- An interview with He Zuoxiu: How he exposes and fights against Falun Gong, Zhang Pengwen, facts.org.cn, 2008-01-02