The integrated and internationalized global economy, international exchanges, and cultural integration increased the frequency of intercultural communication, calling for intercultural communication talents. Thus, the cultivation of students’ intercultural communication skills garnered widespread attention. To better and fairly assess college students’ actual Intercultural communicative competence (ICC) and effectively cultivate students’ ICC, first, this study comprehensively explored the internal relationship between linguistic subjectivity and intercultural communication. Second, an ICC teaching model from the perspective of linguistic subjectivity based on modern information technology (MIT) was constructed, and a college student ICC assessment scale covering 7 dimensions and 36 variables was designed. Finally, an empirical teaching experiment was conducted to verify the credibility and validity of the constructed teaching model and assessment scale. Results show that the 7 dimensions and 36 variables of the constructed assessment scale can effectively measure students’ ICC. Students’ ICC can be enhanced by exploring the college student ICC teaching model from the perspective of linguistic subjectivity based on MIT, and the backwash effect of ICC teaching and assessment can effectively boost college students’ intercultural communicative sensitivity, comprehensive cultural literacy, and practical language application skills.