With globalization advancing, intercultural communication has become frequent, making language crucial for cultural exchange. As influential countries, China and the United States exhibit significant cultural differences in their communication styles. Chinese culture values politeness and subtlety, often favoring indirect expression, while American culture emphasizes direct and clear communication. These differences extend to non-verbal communication as well. Understanding and respecting these differences is essential for enhancing cooperation in politics, economy, and education. This paper explores the main differences in language communication between Chinese and American cultures, analyzes the misunderstandings and conflicts these differences cause, and proposes improvement strategies. The goal is to provide insights for intercultural communication, education, and training to cultivate global talents and foster a harmonious international environment. The paper is divided into five parts: the first introduces the relationship between language and culture and the cultural backgrounds of China and the United States; the second analyzes cultural differences in language communication; the third explores misunderstandings and conflicts; the fourth proposes strategies for improving intercultural communication; and the fifth summarizes the findings and suggests future research directions.