She graduated from the Hong Kong Academy for Performing Arts; as a student, Yan Yan worked for the film industry as an assistant director, production manager, art director, and wardrobe designer.

After directing several short dramas for Radio Television Hong Kong, she established her own production company Dragonfly J Ltd., to make her film.

[3] Since 2005, after becoming a collaborator with Hong Kong Cantopop singer Denise Ho, Yan Yan has produced numerous music videos, music short films, and TV Commercials.

They finished their first feature-length film The Decameron (a documentary about madness, under the music project "10 Days in the Madhouse") in 2009.

Recently, Yan Yan has collaborated with Denise Ho as her concert producer and director in Reimagine Hong Kong (2015), Macpherson Woods (2015), Dear Friend, (2016) and On The Pulse Of Hocc Live 2018.