On 24th of August 2009, Lee got married to Jeong Ho-young. Jeong Ho-young is a reputed Korean-American businessman. Jeong is 20 years older than her. They got married in USA. She also dated him for few years as her boyfriend. In 2011, she welcomed twins a baby boy and girl. Besides this married life, she is not involved in extra marital affairs.
Lee has been active in acting since 1991. That year, she made her television appearance as a TV model and went on appearing in several TV ads and commercials. Finally in 1993, she appeared on the TV series How's Your Husband?. She made her movie debut in 1996 when she appeared in the movie, I will do it. However, she got her raise in fame only after she appeared in the drama series Jewel in the Palace. Her net worth is expected to be around $40 Million.