As globalization continues to deepen, intercultural communication competence has become an indispensable key skill in international exchange and cooperation. This paper aims to explore the theoretical construction of intercultural communication competence and its practical application in foreign language education. By synthesizing reviews of relevant literature from both domestic and international sources, this paper proposes an interactive theoretical model of intercultural communication competence that integrates the dimensions of attitude, knowledge, and skills. The model emphasizes the dialogic nature of intercultural communication, the equality of cultures, and the dialectical combination of globalization and localization. Based on this, the paper further develops a practical model that organically integrates intercultural communication competence, teaching segments, and teaching activities into a three-ring structure, providing a specific operational framework for the cultivation of intercultural communication competence in foreign language teaching. Through empirical research, this paper has verified the application effect of the proposed model in college English teaching. The results indicate that the model can effectively enhance students' intercultural awareness, knowledge acquisition, and communication skills. Finally, the paper puts forward a series of teaching suggestions aimed at promoting the comprehensive development of intercultural communication competence in foreign language education and points out directions for future research and practice.