Kyung-Soo Won studied composition and conducting at Indiana University after graduating from the College of Music at SNU.

Won studied with Neville Marriner, David Zinman, and Erich Kunzel. He conducted world-renowned orchestras including the London Philharmonic, the Berlin Symphony, Vienna Tonkünstler Symphony Orchestra, and served as conductor in residence for the Stockton Symphony Orchestra in America for many years. In addition, he served as conductor in residence on two separate occasions in 1970 and 1994. He also served as Music director for the KBS Symphony Orchestra. He displayed enthusiasm for recording and upgraded the symphony orchestra's musicianship to a higher level.