I. Course Description: The course aims at introducing the application of business linguistics in various discourse studies, including theories of leading linguists, with an emphasis on researching speech acts, reference, politeness, face work, identity, corpus analysis and conversation analysis. II. Objectives: 1. To enable students to grasp basic theories and research methodology of business linguistics and digital business discourse; to familiarize students with the status quo and development trends of business linguistics and digital business discourse; and to enable students to research business linguistics with the latest theories and approaches (Week 7-15). 2. To strengthen students' cultural confidence and build up their sense of national pride. 3. To help students tell the stories of China's economic development on social media platforms. 4. To cultivate students' awareness of political participation, political interest and political literacy and to fulfill the "student-centered, output-oriented and constant improving" educational concept.