William Lü first began his training at Chapman University under the direction of
Cyrus Parker-Jeannette. Throughout his training, he has worked with renowned choreographers, such as David Parsons, Doug Varone, Robert Battle, Tiffany Billings, Cyrus Parker Jeannette, Sean Greene, Nancy Dickson-Lewis, Jenny Backhaus and Amy Bates. Upon his graduation from Chapman University, he received the Fannie Kalis Award, a prestigious award given to the graduating seniors, for his contribution in dance.

Lü has taught as a guest teacher at Golden State Ballet Summer Intensive, Torrance Cultural Arts Center, Madrona Dance School of Spectrum Dance Theatre in Seattle, Northern California Dance Conservatory, Mt. San Antonio College and few other regional dance schools and colleges. He received national recognition, the Engman Award, for his choreographic work Mon Prison Ma Chambre at the Palm Desert’s 2002 Dance Under the Stars Choreography Festival. His work Jolly Lolly Holiday was presented in 2003 at the Dorothy Chandler Pavilion and broadcasted live on the Los Angeles PBS affiliate, KCET.

Lü is currently a member of Backhausdance, and has been performing with the company since its inception in 2003. His credits include a lead in Yo-yo Ma's music video and Tiffany Billings’ Idiosyncrasy. William has also performed as a guest artist with the Orange County Regional Ballet, and the Redlands Ballet Festival Company. He was named as one of "Best Male Dancers of 2004" by the Beverly Hills Outlook and,
recently, he received the 2006 Lester Horton Award For his performance in Jenny Backhaus' "Exit."