Cheung was born in Hong Kong to a Chinese father and a half Chinese-half British mother. Her parents divorced when she was just a child after which she was sent to Australia to live with her aunt at the age of fourteen. Cheung has an elder half-sister Dai Pek Chi (an airline pilot), two younger brothers and also a younger half-brother from her father's side. She is also the daughter-in-law of Patrick Tse (謝賢) and Deborah Li, and wife of Nicholas Tse (謝霆鋒), mother of Lucas Tse. She also has a cousin who currently lives in England.
In 1998, while helping a hair stylist friend at a catwalk show, she was offered to appear in a TV commercial advertising lemon tea. Later, Cheung made her film debut as a young nightclub hostess in Stephen Chow's The King of Comedy (1999), followed soon after by Fly Me to Polaris (1999). The latter role earned her the award for Best Newcomer at the Hong Kong Film Awards. In the same year, Cheung launched her singing career with her first Cantopop album Any Weather (1999).
For Derek Yee's romantic drama Lost in Time (2003), Cheung won Best Actress at the Hong Kong Film Awards. She played a young woman who lost her fiance to a traffic accident which left her as a grieving single mother struggling to make ends meet.
Cheung speaks Cantonese, English and Mandarin (with a strong Canton accent).
Cheung first dated Hong Kong pop singer/actor Daniel Chan, but they broke off a while after. She then dated Nicholas Tse in early 2002, but was then dumped by Tse late that year when Tse got back with his ex-girlfriend, singer Faye Wong. Later she was rumored to have dated a younger Siyuan Lu before the relationship ended in 2003. Cheung suffered serious depression and eating disorder after the break up. Cheung also dated a Dutch expat named Jeroen for a brief period.
Cheung and Tse were first reported "getting back together" in early 2006 and on July 31, 2006, Tse officially admitted dating Cheung in an interview with Hong Kong commercial radio station 881/903.
In September 2006, Tse showed off his wedding ring at the Hong Kong International Airport, announcing he and Cheung were married in a secret wedding ceremony in the Philippines.
On the January 8, 2007 episode of TVB's Entertainment Scoop (東張西望), Cheung was publicly confirmed by Nicholas' father, Patrick Tse to be approximately three months pregnant with the couple's first child.
Around March 2007 on the episode of TVB's Entertainment Scoop (東張西望)it is said that their child is due in August (N.B which is the same month as Tse's birthday). It is confirmed by Cheung's husband Nicholas Tse that she is expecting a baby boy.
On August 2, 2007, it was reported that Cecilia Cheung and her husband were both in the maternity ward awaiting for their child to be born. However no specific photo was enclosed with such report. The very next day, Cecilia gave birth to a 6.5lb baby boy named Lucas.
In January 2008, shocking semi-nude and fully nude photos purportedly of Cecilia surfaced on the Internet, believed to be stolen from the personal computer of Hong Kong singer and actor, Edison Chen 陳冠希. Hong Kong Police have since arrested a suspect for distributing the images on the Internet, which also allegedly included Hong Kong celebrities Gillian Chung 鍾欣桐 and Bobo Chan 陳文媛 in various states of undress and sexual situations.
If you can read Chinese, please follow this link to see the details on this scandal.
The 601st Phone Call (第601個電話) (2006)
My Kung-Fu Sweetheart (野蠻秘笈) (2006)
The Shopaholics (最愛女人購物狂) (2006)
The Promise (無極) (2005) (Film Nominated in the Golden Globe, HK Film Awards, Golden Trailer, Fantasporto)
Himalaya Singh (喜瑪拉阿星) (2005)
The White Dragon (小白龍情海翻波) (2004)
One Nite in Mongkok (旺角黑夜) (2004)
Papa Loves You (這個阿爸真爆炸) (2004) [cameo]
Sex and the Beauties (性感都市) (2004)
Lost in Time (忘了忘不了) (2003) (Won Best female actress in Golden Bauhinia and Hong Kong Film Awards)
Running on Karma (大隻老) (2003)
Cat and Mouse (老鼠愛上貓) (2003)
Honesty (絕種好男人) (2003)
Mighty Baby (絕世好B) (2002)
Second Time Around (無限復活) (2002)
The Lion Roars (我家有一隻河東師) (2002)
The Legend of Zu (屬山正傳) (2001)
Para Para Sakura (Para Para 嬰之花)(2001)
Shaolin Soccer (少林足球) (2001) [cameo]
Everyday Is Valentine (情謎大話王) (2001)
Master Q 2001 (老夫子2001) (2001)
Wu Yen (鐘無艷) (2001)
Twelve Nights (十二夜) (2000)
Tokyo Raiders (東京功略) (2000)
Help!!! (辣手回春) (2000)
The Legend of Speed (烈火戰車2之極速傳說) (1999)
Fly Me to Polaris (星願) (1999)
The King of Comedy (喜劇之王)(1999) (nominated as best new actress in Hong Kong Film Awards)
Colour of Lip (至愛唇色(新曲+精選)) (2002)
Shaolin Soccer (2002)
Party All the Time (2001)
New and Best Collection (2001)
Party All the Time (2001)
Cecilia Cheung (2000)
A Brand New Me (最新形象) (2000)
903 California Red Concert (2000)
Any Weather (1999)