Fang Jin began her career as a model for Ruili magazine before transitioning into acting. Her first involvement in the entertainment industry came in 2016 with the LeTV web series The Distance Between Me and You Light Years. She officially debuted in 2017 with the Sohu series Dear Brain. Her early roles showcased her versatility, and she quickly gained attention for her ability to portray emotionally complex characters.
Her breakthrough came with Once Upon a Time in Lingjian Mountain (2019), which expanded her popularity among fantasy drama fans. Since then, she has starred in numerous series including The Four Daughters of Luoyang (2022), Investigator (2022), and Embrace in the Dark Night (2024). She continues to take on leading roles in upcoming dramas such as Affinity (2026) and Glory Back (2026), solidifying her reputation as a rising star in Chinese television.