After studying Chinese and jazz dance from elementary school, at 17 years old Yeung won a national contest to find new talents, organized by the Taiwainese TV, and shortly after she made several appearances on TV and a bit part in the Taiwanese film of 1985 "Taipei Story", directed by Yang De-Chang. In 1987 she signed a contract with Hong Kong film studio D & B to replace Malaysian action star Yang Zi Qiong and from then she starred in more than 20 martial arts films. From 1994 she combined her appearances in movies with TV series, making more than ten TV productions in only 5 years. Her screen name Cynthia Khan was actually a combination of the names of established Hong Kong stars Cynthia Rothrock and Michelle Khan, whom she replaced in the "In the Line of Duty" movie series.
A Serious Shock! Yes Madam!
In the Line of Duty 4
The Avenging Quartet
Madam City Hunter
In the Line of Duty 3
Tiger Cage II
Tough Beauty And The Sloppy Slop
The Invincible Constable
Blade of Fury
The Boxing King
Taipei Story
Three-Head Monster
Yes Madam 5
Top Fighter 2
The Gods Must Be Funny in China
Zen of Sword
Eternal Fist
The 13 Cold-Blooded Eagles
Deadend of Besiegers
Forbidden Arsenal
