In the 2018/19 season, Luo reached the quarter final of the 2018 English Open, before being defeated 5-3 by Ronnie O'Sullivan. At the final event of the season, Luo defeated Marco Fu 10–7, Robbie Williams 10-8 and Tom Ford 10–8 to reach the main stage of the 2019 World Snooker Championship held at The Crucible in Sheffield. However, in his first-round match against Shaun Murphy, he became only the second player to suffer a whitewash at the World Snooker Championship at The Crucible, losing 10-0 and setting a record for fewest points in a match at The Crucible with 89.