In Dae Jang Geum, Park's character eventually wins the favor of the king and becomes pregnant with his child. After being pressured by the queen and the king's mother to inform them of Jang Geum's plans, Yeon-seng goes into a difficult labor. With Jang Geum's help, she gives birth to a princess.

Park Eun-Hye's character in Silence is mute. She meets her childhood love again and helps him realize the most precious things can not be bought with money. He finds out that he has liver cancer and tries to live life to its fullest before his time is up.

Park is also known for having strikingly similar features to Han Hye-jin, another Korean actress.