Tin entered a singing contest in 1993 and won first place. After her win, she was offered a contact at Asia Television and accepted the offer. In 1995, Tin began to act her acting career with ATV.
In 2003, Tin decided to end her ten year work relationship at ATV. Her time with ATV earned her two Hong Kong Film Awards for Best Actress. She then worked as a radio host at Commercial Radio Hong Kong.
Tin is currently signed to TVB.