In 1995, after the breakup of Little Tigers, Su embarked on an acting career. His role as the Wu Ah Ge, Yongqi in the Chinese TV series blockbuster "My Fair Princess" I and II won him fame as a television actor in 1997. He continued in 2000 with another hit TV series "Romance in the Rain". His later TV series include "Heavenly Sword and Dragon Sabre" (2002), "Magic Touch of Fate" (2004, costarring Taiwanese actress Ruby Lin and Korean singer Kang Ta), and "Mischievous Princess" (2005). He collaborated with Korean actress Chae Rim in two 2003 productions, "Love of the Aegean Sea" and "Warriors of the Yang Clan".