Professor Liu has engaged in research of grain processing, new food processing technologies, and functional foods. Hosted 10 national level projects, including 1 joint key project of the National Natural Science Foundation of China, 5 general projects, 1 863 special project, 1 national science and technology support plan for the 11th and 12th Five Year Plans, etc. and more than 20 provincial-level projects such as the "5511" project major research. Received 12 provincial and ministerial level scientific and technological achievement awards, including 1 first prize of the China Agricultural Science and Technology Award, 1 first prize of the Jiangxi Provincial Natural Science Award, 3 first prizes and 3 second prizes of the Jiangxi Provincial Science and Technology Progress Award, and 2 second prizes of the Ministry of Education's Science and Technology Progress Award. Published 136 SCI indexed papers, including 11 highly cited papers, and was selected as a Global Highly Cited Scientist by Clarivate Analytics. Published 4 professional books and textbooks and 63 national invention patents have been authorized.