Cao made his feature film debut with the 1997 comedy film
Run Away, which earned him a Youth Film Fund award at the
54th Cannes Film Festival. In 2001, he shot the feature film
Chicken Poets, and won a Special Jury Prize at the
Locarno Film Festival. That same year, he began to shot
advertisement films. In 2004, he shot Lu Chuan's
Kekexili: Mountain Patrol, for which he received the Best Cinematography nomination at the
25th Golden Rooster Awards and received the Best Cinematography at the
41st Golden Horse Awards. Cao was cinematographer for the 2010
romantic comedy film
Color Me Love. In 2012, he collaborated with Yang Shupeng on the
action film An Inaccurate Memoir. In 2015, he was selected as cinematographer for the 3D adventure action film
Chronicles of the Ghostly Tribe, his third collaborated with director Lu Chuan. In 2017, Cao won the Best Cinematography at the
36th Hong Kong Film Awards for his work in
See You Tomorrow, and was nominated for Best Cinematography at the
54th Golden Horse Awards. ==Personal life==