Lee Chun-hee debuted as an actor in the 2003 sexy drama film A Good Lawyer’s Wife. In 2008, he became a cast member of the SBS variety show Family Outing, which won him the Netizen Popularity Award at the SBS Entertainment Awards. That same year, he was cast in the KBS sageuk series The Great King, Sejong, which earned him a Best New Actor nomination at the KBS Drama Awards. In 2009, he was nominated for Best Supporting Actor at the SBS Drama Awards for his work in Smile. In 2010, he starred in MBC’s Gloria, in which he bagged an Excellence Award nomination at the MBC Drama Awards. In 2012, he received another nomination for an Excellence Award at the SBS Drama Awards for Take Care of Us, Captain. In 2018, he joined the main cast of the MBC melodrama A Pledge to God, which scored him an Excellence Award nomination at the MBC Drama Awards.


Lee Chun-hee and his Smile co-star Jeon Hye-jin tied the knot in March 2011. They have a daughter together.