[3] Jeon Hye-bin made her entertainment debut in 2002 with the band LUV, alongside Jo Eun-byul and Oh Yeon-seo.

In 2003, Jeon appeared in the third season of MBC's sitcom Nonstop and was later cast in KBS' television series Sang Doo!

[11] The title song, "2AM", which was produced by Mr. Tyfoon, was heavily criticized for its suggestive dance routine.

[12][13] In 2007, Jeon played supporting roles in romantic comedy series Witch Yoo Hee and historical drama The King and I.

[16] In 2009, Jeon played a gumiho in a segment of Hometown of Legends, a ten-episode horror drama which consists of several stories of Korean traditional myths and folk tales.

[25] In October 2013, Jeon joined the cast of Beating Hearts, a reality show with a group of celebrities training to become firefighters.

[28][29] In 2015, Jeon was cast in the sports film The Legend of a Mermaid, playing a former national synchronized swimmer.

[38] Jeon was the CEO of ByHeaven (Korean: 바이헤븐), an online shopping mall which ceased operations in 2014.

On 29 October 2012, she donated the proceeds from her personally designed hair dryer to Make-A-Wish (Korea).

She eventually confirmed that she underwent plastic surgery when rumors were quickly spreading about the change in her appearance.