In January 2019, Ding participated in the Masters, beating Jack Lisowski 6–1 in the first round and Luca Brecel 6–5 in the quarter-final. He lost to Ronnie O'Sullivan 6–3 in the semi-final. At the 2019 German Masters, Ding defeated Fergal O'Brien 5–3 in the last 32 and Xiao Guodong 5–4 in the last 16. However, he lost to Duane Jones 5–3 in the quarter-final. At the 2019 World Snooker Championship, Ding beat Anthony McGill 10–7 in the first round, but lost to Judd Trump 13–9 in the second round. His end-of-season world ranking was ten.