Choi has not been married but she had romantic love affairs with Lee Jin-wook for about three years. Lee Jin-wook is also an actor and he has appeared in several movies and television series in South Korea.
Choi has been active in acting since after she became the winner of the talent audition organized by MBC. She played her first acting role in 1995 on the drama series War and Love. She appeared in the 1996 movie, The Adventures of Mrs Park. She has also been active in several music videos and variety shows since 1996. One of the lucrative stars of South Korea Choi has been earning huge amount of salary and her net worth is said to be around $15 Million.