In 2000, Hwang Hyo-eun landed a minor role in the movie Bungee Jumping of Their Own and has since appeared in several films and TV series. In 2009, she became part of MBC’s Queen of Housewives, which was nominated for Best Drama at the 46th Baeksang Arts Awards. In 2017, she joined the top-rating JTBC series Woman of Dignity. In 2019, she was cast in the tvN comedy-thriller drama Psychopath Diary. That same year, she appeared in the box-office hit disaster action comedy film Exit.

Hwang Hyo-eun married a film company employee named Kim Eui-sung in May 2009.