She made her entertainment debut as a school uniform model in 2001, then launched an acting career in 2003.

[1] Kim adopted the stage name Go Joon-hee in 2008, after her character's name in What's Up Fox (2006).

[2] After playing supporting roles in Girl Scout (2008) and Architecture 101 (2012),[3] she was cast as a lead actress in the 2011 indies Drifting Away and Yeosu,[4] the mainstream romantic comedies Marriage Blue (2013) and Red Carpet (2014),[5][6][7][8] and the heist film Intimate Enemies (2015).

[9] Go has also appeared in several television dramas, notably Listen to My Heart (2011), The Chaser (2012), and King of Ambition (2013).

[10][11] In 2013, she joined the fourth season of dating reality show We Got Married opposite Jinwoon of boyband 2AM.