Abstract: Since the 1860s, China's original suzerain - vassal system has faced a great challenge. Theormer vassal states, An'nan, Siam , and Myanmar all ended suzerain - vassal relations with China , leav-ing only Korea respecting China as suzerain, In order to maintain the last vassal state, the Oing government made efforts from negative non - intervention in the 1960s to  controlling foreigners by foreignersin the 1980s to full - scale intervention, but the final result was a failure. After the singing the Treaty ofShimonoseki in 1895, the vassal relationship between China and Korea was inevitably ended, whichmarks the collapse of the suzerain-vassal relationship in Asia.

Key words: China； Korea, suzerain-vassal relations