Abstract: With the rapid development of globalization, cross-cultural communication has gradually entered our daily life. Politeness principle exits in each culture, and plays an important role in cross-cultural communication. The problem of how to communicate with people from different cultures politely is becoming more and more important. From the cross-cultural perspective, the thesis aims to analyze the differences, clarify the causes and applications of politeness in daily cross-cultural communication. Based on the study, the paper intends to form a correct view towards politeness principle, in order to achieve the success of cross-cultural communication. 

Key words: politeness principle; cross-cultural communication; daily life

摘要：随着全球化的快速发展，跨文化交际正日益成为人们日常生活的一部分；而礼貌原则存在于任何文化中，在跨文化交际中起着重要作用，如何礼貌得体地与不同文化的人交流也变得尤为重要。本文从跨文化角度对日常礼貌用语不同之处进行对比，并阐明产生这种差异的文化因素，最终使其能准确运用到跨文化日常交际中。通过研究，形成对礼貌原则的正确认识，避免语用失误，提高跨文化交际的能力。

关键词：礼貌原则；跨文化交际；日常生活