Has undertaken the teaching tasks of general geology, gemmology, gemmology, crystallography, jewelry and jade appreciation and culture, petrography and other courses. He tries to take every class seriously. Even if the teaching content is proficient, he should fully prepare lessons before class. In class, he attaches importance to interactive teaching and heuristic teaching, and also attaches importance to integrating theory with practice and making good use of it. Therefore, in 2004 and 2006, he won the "Youth Teaching Excellence Award" for two consecutive years. Teacher Liu's teaching effect has also been fully affirmed and recognized by students. In the past three years, students' teaching evaluation scores have all been above 97. The student wrote in his teaching evaluation: "Mr. Liu pays special attention to the cultivation of our ability, pays attention to cultivating our ability to think independently, and is highly serious, rigorous and responsible for teaching." "Teachers are role models", Mr. Liu's teaching style is simple, easy to understand and humorous, "I have seen the most serious teacher in college" and "Mr. Liu's lectures are serious, vivid and very dedicated". These words also deeply touched and inspired Mr. Liu, making him feel that only by working harder can he be worthy of the praise of the students.

In order to further improve the quality and level of teaching, Mr. Liu has been constantly learning advanced educational science theories, actively learning from the old teachers around him, constantly improving teaching content and teaching methods, and actively carrying out teaching research and teaching reform. In 2006, Mr. Liu, as one of the keynote speakers, "Fundamentals of Inorganic Materials Science" was awarded as a school-level excellent course; In 2007, as the host, he won the school teaching and research project; In 2008, as the person in charge of the course, Crystallography was awarded as a school-level excellent course; In 2009, he won the third prize of school-level teaching achievement with other teachers; In addition, he also won the excellent award for guiding undergraduate graduation thesis.