Jang Do-yeon debuted in the entertainment industry with an appearance in the Mnet talk show called Shin Dong-yup’s Talk King 18 in 2006. In 2012, she became a cast member of the tvN comedy show Comedy Big League, which earned her nominations for Best Female Variety Performer at the 51st, 52nd, and 55th Baeksang Arts Awards. In 2019, she won the Best Entertainer Award at the MBC Drama Awards for the reality-variety program Funding Together. In 2020, she took home an Excellence Award each at the MBC and the SBS Drama Awards for I Live Alone and Park Jang’s LOL, respectively. In 2021, she finally bagged the Best Female Variety Performer trophy at the 57th Baeksang Arts Awards for I Live Alone and Don’t Be the First One. Also in 2021, she was named Best Entertainer at the KBS Drama Awards for Dogs Are Incredible.

Jang Do-yeon attended Kyung Hee University’s Department of Visual Design.