Kim So-hyun began her career as a child actress, and is best known for her roles as the young Yoon Bo-kyung in Moon Embracing the Sun and the young Lee Soo-yeon in Missing You, 2012 K-Drama Star Awards: Best Child Actress (Missing You, Ma Boy)
2012 MBC Drama Awards: Best Child Actress (Moon Embracing the Sun, Missing You)
2013 SBS Drama Awards: New Star Award (Birth Secret, I Hear Your Voice, The Suspicious Housekeeper).
She's also one of the current MCs in Show! Music Core.