Wang Yi-Jen studied erhu and piano under Cai Pei Huang and An Ru Li respectively at National University of Arts in Taiwan and graduated with Honours in 1993.

Wang Yi-Jen was the erhu player of Kaohsiung Chinese Orchestra from 1994 to 1999. She joined the Singapore Chinese Orchestra in 1999.

Wang Yi-Jen teaches erhu in many schools including RVHS and Temasek Secondary School, which attained a Gold award and Gold with Honours award during the biannual Singapore Youth Festival in 2009.