She was born in Jeonju, South Korea. Originally her name was Kim Min-ji (김민지) but she legally changed it to Kim Tae-ha (김태하).
In 2009, she participated in the audition of the first season of competition show Superstar K. She also appeared on Mnet's Produce 101 as a trainee under Starship Entertainment. She ranked 50th place in episode 8 and was eliminated.
After Produce 101, she left Starship and joined Dublekick Company (now MLD Entertainment).
She joined as a member the girl group MOMOLAND in April 2017, preceded by Daisy, who was added on March 28, 2017, making them a 9-member girl group.
Reality survival shows
- "Cross OST Part.5" (Ahin and Taeha) (2018)
- "Tempted OST Part.1" (with Joo E, Nancy, and Ahin; credited as MOMOLAND) (2018)