Baek Jin-hee began her entertainment career after getting scouted on the streets by a talent agent. She has since then starred in the indie film Bandhobi (2009), where she plays a rebellious girl who befriends a Bangladeshi migrant worker; and sex comedy Foxy Festival (2010) where she plays a teenager with a thriving Business selling her used underwear.
Baek then starred in the sitcom High Kick: Revenge of the Short Legged (2011-2012), playing a fresh graduate looking for employment. The series was popular and led to increased recognition for the Actress. This was followed with supporting roles in fusion historical drama Jeon Woo-chi and romance drama Pots of Gold.
Baek had her breakthrough role as the villainous Empress Tanashiri (Danashiri) in the period drama Empress Ki (2013-2014), She next starred as an orphaned casino dealer in melodrama Triangle (2014), and a passionate prosecutor in legal drama Pride and Prejudice (2014).
In 2015, Baek played the title role in family drama My Daughter, Geum Sa-wol, which was a hit and ended with national viewership of 33.6 percent.
On 26 March 2017, Baek's agency confirmed that Baek has been in a relationship with her My Daughter, Geum Sa-wol co-star, Yoon Hyun-min since April 2016.