[3] In 2014, Xu won the Tian Yi Fei Young Campus Singers Contest, a national singing competition for college students.
[5] Subsequently, she signed a contract with Show City Times, and on August 23, 2016, she released her first single, "In the Zone", in a collaboration with rapper Alex Hong.
[6] On November 22, 2016, Xu performed "In the Zone", "If I Ain't Got You", and other songs in the City Voice Campus Welcome Concert in Chengdu.
[8] Xu also participated in the Super Hi Christmas Music Party Concert in Chengdu on December 23, 2016, singing the songs "In the Zone" and "翅膀 (Wings)".
[10][11] On April 30, she performed "In the Zone" and Grand Funk Railroad's "Some Kind of Wonderful" at the 2017 Mount Emei Buddha Light Flower Sea Music Festival.
[15] On April 27, 2018, she released the single "Youth Anthem" with Alex Hong and Boss X, which was also featured in the "Vibe Presents Urban Asia, Vol.
[22] In January through May 2020, Xu participated in the girl group survival show Youth With You (season 2), in which she was eliminated in the 28th place despite being praised as the "top vocal" by mentor Ella Chen.
[30][31] In January and February 2021, Xu Xinwen participated in episodes 5 and 6 of Mango TV's program Let's Go along with UNINE's Xia Hanyu.
[38] On May 1, 2022, the drama Love in a Loop was broadcast on iQIYI and Tencent Video, with Xu Xinwen as the character Kong Feifei.