Ha Yoon-kyung debuted as an actress in the 2015 thriller-drama film Socialphobia. In 2018, she played supporting roles in Matrimonial Chaos and in Mystery Queen 2, which both aired on KBS2. In 2020, she joined the hit tvN series Hospital Playlist. In 2021, she became part of the JTBC drama Sunbae, Don’t Put on That Lipstick. She then reprised her role in Hospital Playlist 2. In 2022, she was cast in the high-rating ENA legal drama Extraordinary Attorney Woo.

Ha Yoon-kyung attended Korea National University of Arts.