At the 2001 World Championships in Fukuoka, Luo took home 4 medals, including gold in the 50 breaststroke (30.84, Asian record, missing the WR by a mere 0.01 sec) and 100 breaststroke (1:07.18, Asian record), and bronze in the 200 breaststroke (2:25.29 pb) and 4x100 medley relay (4:02.53; breaststroke split 1:06.47 was the 2nd fastest ever, behind USA's Megan Quann's 1:06.29 from Sydney 2000). Luo went on to win the 100 breaststroke at the 2001 Chinese National Games at 1:06.96 (Asian record). It was during these Games that she said her very well known quote, "The water in this pool is not very clean, but I am a clean swimmer myself" (referring to the series of astonishingly fast times posted by some totally unknown swimmers who were highly suspected of doping at the National Games).