Teaching of thermology is necessary in achieving the objective of cultivating science undergraduates with a complete physical knowledge system. In order to enrich the teaching content and improve the teaching quality, it is very effective and necessary to use the relevant historical facts and integrate the relevant theories of materialist dialectics into the teaching process, which can not only stimulate the students' interest in learning, but also promote the students' understanding of relevant knowledge. At the same time, it can also help cultivate the students' correct world outlooks, improve their humanistic quality, and realize the teaching purpose of cultivating innovative and high-quality talents.