Metaphor, rooted in language and culture, is the way that human beings perceive the objective world. Introducing Cognitive Metaphor Theory into translation teaching can help students construct psychological images, deepen their intuitive understanding of different meanings of the same word in specific contexts, and thus expand the scope of expression and improve the effect of expression. Secondly, metaphor is an important means of discourse organization and construction. Systematic analysis of metaphor is helpful to understand the internal coherence of discourse. Thirdly, metaphor not only constitutes culture but also inherits culture. By introducing culture into translation teaching through cognitive metaphor, students' cultural consciousness and metaphorical thinking ability in the process of translation can be cultivated.