In the Scottish Open, Liang reached the quarter-finals, where he lost to Yu Delu 4–5. In the Masters, he missed the final black, which would have seen him eliminate O'Sullivan 6–4 in the opening round of the Masters, instead going on to lose 5–6. A 4–0 thrashing of Dominic Dale and a pair of 4–3 victories over Mark Allen and Joe Perry moved Liang into the semi-finals of the World Grand Prix, where he was defeated 1–6 by Barry Hawkins. In the second round of the World Championship, Liang trailed Ding Junhui 2–6 after the first session and 7–9 after the second. He then won a trio of frames to take the lead in the match for the first time and would have been 12–11 ahead, one frame away from reaching the quarter-finals for the second time, but instead lost 12–13. After the event, his end-of-season ranking rose to 11, which was a career-high.