In Chinese culture, the word hanjian is a pejorative term for a traitor to the Han Chinese state and, to a lesser extent, Han ethnicity. The word hanjian is distinct from the general word for traitor, which could be used for any country or ethnicity. As a Chinese term, it is a digraph of the Chinese characters for "Han" and "traitor". Han is the majority ethnic group in China; and Jian, in Chinese legal language, primarily referred to illicit sex. Implied by this term was a Han Chinese carrying on an illicit relationship with the enemy. Hanjian is often worded as "collaborator" in the West.

Wang Zhaoming, widely known by his pen name Wang Jingwei, was a Chinese politician who was president of the Reorganized National Government of the Republic of China, a puppet state of Japan. He was initially a member of the left wing of the Kuomintang, leading a government in Wuhan in opposition to the right-wing government in Nanjing, but later became increasingly anti-communist after his efforts to collaborate with the Chinese Communist Party ended in political failure.