Choi made his debut in 1987 as a young actor in the TV soap opera Love Tree.

As a public figure and social activist, Choi Soo-jong has sought to project an image of integrity and wholesomeness.

His fidelity to his wife and dedication to his role as father and husband are widely discussed in the media, although he strives to retain his family's privacy.

Despite his advancing age, Choi continues to accept physically challenging roles that require horseback riding, combat and swordsmanship, and exposure to extreme temperatures.

In a series of news stories, it was revealed that several high-profile Korean actors had falsified their academic credentials.

Choi is frequently seen text messaging and making phone calls with his wife Ha Hee Ra while filming and was even documented doing so in the television special for Emperor of the Sea.

In June 2009, Choi Soo-jong and six other high-profile actors waived their fees to teach master acting classes at Im Kwon-taek Film and Art College of Dongseo University.