Uyen Linh was born in Ho Chi Minh City. After graduating from Le Hong Phong High School, she moved to Hanoi to study International Politics at the Diplomatic Academy of Vietnam. During her study there, she opened a small fashion shop near the school. It worked quite well. However, due to her busy schedule, the shop was subsequently closed. When in Hanoi, Uyen Linh also mastered the Northern accent, which is often considered standard in singing Vietnamese songs.
Uyen Linh's idol is Whitney Houston and her favorite genre is RnB. According to one of her interviews, she admires the voice of Whitney because "Whenever Linh hears her singing, Linh feels like unable to stray away from Whitney. Linh feels extremely focused on Whitney's graceful shape of the lips, body movement and emotions; especially those moments when she's sublimating on stage. It creates the wish inside that urges Linh to want to shine brightly like Whitney. So, for Linh, the title "Idol" carries a larger and more meaningful message than it appears, especially when Linh chose to be a singer. Linh thinks that one in a hundred of people who is chosen to be a singer and they need a strong source of support in order to continue the chosen path, whether it's right or wrong. For Linh, Whitney Houston represents that source."
In 2008, she auditioned for the second season of Vietnam Idol and the third series of Sao Mai - Điểm hẹn prior to re-auditioning for Vietnam Idol (season 3), but failed to make it through. She received special prizes from 2008 Soul of Melody, 2008 Let's Get Loud contest. She was a finalist of Northern region in pop genre of Sao Mai 2009 but she did not make it to the National.
Uyen Linh auditioned for the third season of Vietnam Idol in Hanoi. She advanced to top 10 from the semi-final by the selection of the judges. Uyen Linh's performances were highly applauded by the judges throughout the contests. However, she was in the bottom three in the fifth gala round and was originally eliminated from the show but later was saved thanks to Đăng Khoa's withdrawal (one of the judges later confirmed that they would have saved her otherwise). From top three, she received many positive feedbacks from the judges, audiences, and the mass media with her successful performances.
Uyen Linh's Facebook page has attracted more than 110,000 fans as of 10 Jan 2011. However, it was disabled without any notice by Facebook. Uyen Linh confirmed that she had no knowledge of how and why her Facebook fan page was deleted; she only received a warning from Facebook regarding the spam issue and afterwards the page was disabled without any clear reason. A new Facebook page was established for her in August 2011.