Jaycee Chan, a movie and television actor also known as Fang Zuming, was detained by Beijing police together with his friend, 23-year-old Taiwanese movie star Kai Ko Chen-tung, the Beijing News and Beijing Times newspapers reported.
It's unclear when the duo was detained, but neither has posted anything on their frequently updated Weibo social media accounts since last Tuesday, Hong Kong-based South China Morning Post reported.
Chan and Ko join a growing list of celebrities, including Hong Kong and Taiwanese actors, who have been nabbed in Beijing's widening campaign targeting celebrity drug abuse in the last two years.
The duo could face potential criminal charges, the Beijing News said.
A Hong Kong resident, Jackie China in recent years has struck chord with the ruling Communist Party of China (CPC).
He has formally been appointed as the member of China's advisory legislative body, the Chinese People's Political Consultative Conference (CPPCC) last year.