Mui received training in Chinese classical and ethnic dance in Hong Kong. She joined the Hong Kong Dance Company from 1981-90 as the principle dancer. In 1985, she won the Hong Kong Young Choreographer Competition and received a scholarship to study modern dance in New York. Upon returning to Hong Kong, she created works Awakenings in a Dream, Cursive Script and the Diary Series.

Mui became an independent choreographer / dancer / teacher in the 90s. Under the auspices of Asian Cultural Council, she took part in the International Choreographer's Programme at the American Dance Festival and performed at the East & West Center, University of Hawaii. Mui was often commissioned by CCDC, the Hong Kong Dance Company and The Hong Kong Academy for Performing Arts to create new works. Her major works include Fragrant Garden, Water Music, E-motion, As Quick as Silver, Stories about Certain Women, Eulogy, la grace, Between Bow and String, Of Grandeur and Desolation, Kinetic Body Operatics, Pink Lily, October Red, Duet 3X, The Enigma of Desire - Dali vs Gala, Lot · us and Feng · Shui.

Mui is an internationally renowned solo artist. She has been invited to many international arts festivals including Hong Kong Arts Festival (1994, 2001), Belgium International Arts Festival (1994), Lisbon Culturgest (1995), Re:Orient Dance Festival in London (1995), Hong Kong Festival at the Berlin Tacheles (1996), la Biennale du danse de Val-de-Marne (1997), Ein Fest in Wuppertal (1998), Venice Biennial Dance Festival (1999), Dancing-World Festival in Copenhagen (2000), the Lyon Biennale de la Danse (2000), Beijing Modern Dance Festival 2001, Dance Biennale Tokyo (2002) and the Images of Asia Festival in Copenhagen (2003).

In 2000, Mui was invited by Pina Bausch & Folkwang Tanzstudio to choreograph Whispering Colour and to perform as a guest dancer in The Rite of Spring with Tanztheatre Wuppertal.

Mui was named the "Dance Ambassador" (2000) and awarded the "Hong Kong Dance Awards 2001" by the Hong Kong Dance Alliance and she was also named the "Outstanding Woman" by Wai Yin Association (2001).

She is currently the Associate Choreographer of CCDC.