Jung Hye-in made her acting debut in 2009 through a supporting role in the horror film Whispering Corridors 5: A Blood Pledge. She has since appeared in a number of dramas and films such as the 2014 KBS2 series Healer, where she played the young counterpart of Do Ji-won’s character. In 2015, she starred alongside Jae Hee and Kang Byul in the KBS1 daily drama Save the Family. In 2018, she was cast in KBS2’s Love to the End, which earned her a Best New Actress nomination at the KBS Drama Awards. In 2019, she joined the cast of the hit MBN drama Graceful Family. In 2020, she acted alongside Choi Jin-hyuk in the OCN sci-fi drama Rugal, which was followed by an appearance in JTBC’s Sisyphus in 2021.

Jung Hye-in attended Sungkyunkwan University.