As a student at Anyang Art High School,[5] Park posted photographs of herself on the internet, becoming an online celebrity due to her close physical resemblance to actress Jun Ji-hyun.

[6][7] After being signed by an entertainment agency, she made her acting debut in the 2003 horror film Wishing Stairs, her part requiring her to learn ballet over a two-month period of rigorous training.

[8][9] Having since appeared in a succession of television drama series, Park returned to the big screen with a role in the 2008 film Fate.

[11][12] In 2010, Park starred in the coming-of-age film My Black Mini Dress, based on the same titled chick lit novel by Kim Min-seo.

[21] In June 2009, K-pop singer Seven acknowledged on his website that he and Park had been in a relationship for seven years, with the couple having first met when they were seniors in high school.