In the era of accelerating globalization, the necessity for multilingual education is increasingly prominent. This study investigates the effectiveness of the AI-based chatbot ChatGPT in multilingual teaching applications. This study employs a quasi-experimental research methodology to examine the experiences of 100 international students at a university in Western China. The investigation delves into multiple dimensions of ChatGPT's effectiveness, including user interface design, operational experience, educational interaction, student engagement, personalized learning recommendations, and the enhancement of cultural understanding. The findings indicate that ChatGPT demonstrates significant potential in multilingual teaching, particularly in providing personalized learning support and facilitating cultural comprehension. However, improvements are needed in aspects of user interface friendliness, interaction naturalness, and depth. This research not only provides empirical support for the use of ChatGPT in multilingual education but also introduces a fresh perspective on integrating AI technology into educational practices, thereby advancing its role in multilingual teaching.