With the continuous development of information technology, the traditional choir teaching mode can no longer meet the needs of students, and diversified teaching modes need to be adopted. This article aims to explore a comparative study of choir teaching based on diversified models in Chinese and foreign universities under the background of informatization. By comparing the different modes of choir teaching in Chinese and foreign universities and analyzing their characteristics, advantages and disadvantages, this paper explored the impact of diversified modes on choir teaching and proposed corresponding improvement suggestions. In addition, a questionnaire survey was conducted to analyze the diversified mode of choir teaching. The research results indicated that 86% of people agree with diversified teaching platforms. Diversified models can effectively improve the effectiveness and quality of choir teaching, but it is also necessary to pay attention to adapting to different teaching environments and student needs.