李心洁，签约于台湾滚石唱片公司，之后曾参与多个广告片的演出。1996年，李心洁发表了首张国语专辑《同一个星空下》。2000年9月, 推出了第五张个人专辑《爱像大海》。除了歌唱以外，她还努力于写词，写书及画画。2000年正式开展她在电影圈的演艺事业，首部担任女主角的的电影《爱你爱我》,夺得2001年柏林电影节的最佳新演员奖。第三部担任女主角的电影《鬼眼》夺得第三十九届台湾金马奖最佳女主角奖(2002年)，第八届香港金紫荆奖的最佳女主角奖(2003)、第二十二届香港电影金像奖最佳女主角(2003)及中国大陆第六届华语电影传媒大奖最佳女主角(2003)。

除此以外，李心洁亦作舞台上的尝试，98年圣诞节，演出了台湾由果实文教基金会的歌舞剧\"爱滋梦游仙境\"。2002年于香港为邓丽君基金会演出纪念邓丽君小姐之音乐剧\"但愿人长久\",担任少年时期的邓丽君。

Angelica Lee Sin-Jie (Chinese: 李心潔; pinyin: Lee Sin-je; born 23 January 1976 in Kedah, Malaysia) is a Malaysian Chinese film actress and pop singer. She started her career in singing and later moved on to acting in Taiwan and Hong Kong. Lee starred in The Eye, the hit Asian horror film by the Pang Brothers, winning her the Golden Horse Award for Best Actress, Best Actress at the Hong Kong Film Festival and a Hong Kong Golden Bauhinia Award. She is among the very few Asian artists to be awarded as Berlin Film Festival Best Newcomer Awards in 2001 for her role in Betelnut Beauty.

Lee has also starred in the films 20 30 40 (where she co-starred with the person who discovered her, Sylvia Chang Ai Jia), and Koma. She worked with the Pangs again on Re-cycle, which was screened at the 2006 Cannes Film Festival.

She is married to director Oxide Pang. Lee speaks five languages: Mandarin, Hokkien, Malay, Cantonese, and English.