Before acting she studied Chinese and jazz dance at her elementary school and won a national contest to find new talents, on a Taiwainese TV when she was just 17 years old, later she practiced taekwondo when took higher grade in this martial art.

In 1987, she signed a contract with Hong Kong film studio D & B to replace actress Michelle Yeoh and made her film debut In the Line of Duty 3. The film became a huge box office success and her long career was underway. She followed up this film with a number of sequels and other films. Most notable In the Line of Duty 4: Witness which was directed and cheoreographed by Yuen Woo Ping and co-starred action superstar Donnie Yen.

Her screen name was actually a combination of the names of established Hong Kong stars Cynthia Rothrock and Michelle Khan (as Michelle Yeoh was then known), whom she replaced in the "In the Line of Duty" movie series. Edit Biography