Liu competed at the 2019 City of Jesolo Trophy in April alongside fellow World team member Zhang Jin and first-year seniors Qi Qi and Tang Xijing in Jesolo, Italy. There she won silver with the Chinese team, silver in the all-around behind Sunisa Lee of the United States, and gold in the balance beam final ahead of Americans Emma Malabuyo and Lee. She also placed fourth on the uneven bars behind Lee, Xijing, and Elisa Iorio of the home team Italy. Liu competed the all-around again after having not performed a floor exercise since the 2017 National Games. Additionally, her balance beam score of 14.967 during the all-around final was the third-highest international score of the year.