This course is the professional foundation course of international trade professional group in higher vocational colleges and universities. As an important carrier of international business quality development, the course is an integrated course for students majoring in economics and trade, with 2 credits and 30 hours. The course starts in the first semester of the freshman year, through which students can master the basic knowledge of etiquette, embody calm and decent temperament and manners in international business interactions and daily business activities, avoid impolite words and deeds caused by ignorance, deeply understand and be able to effectively deal with cross-cultural conflicts and contradictions, and improve business efficiency.