He was based in Hong Kong, China, and sometimes attracted controversy for his attitude and approach to the teaching and practice of his martial art.
Though closely associated with the Wu school of tai chi, he founded a separate organisation called the Hong Kong Tai Chi Association (香港太極總會) which is now run by his wife Chan Lai Ping (陳麗平).
Cheng Tin Hung produced a series of books and VCDs on the subject of tai chi and was also involved in the production of the 1974 Hong Kong movie called The Shadow Boxer (Shaw Brothers).
During the 1980s, Cheng Tin Hung travelled to the UK to promote tai chi.
During the 1990s, Cheng Tin Hung's tai chi career slowly drew to a close with the onset of diabetes and its debilitating effects.