Student satisfaction in online live classes is considered an important criterion to evaluate the effectiveness of this instructional system. This study aims to develop a performance evaluation index to measure the satisfaction of students who have mastered Chinese language and literature through online live classes. Guided by survey techniques and related theories, a questionnaire on satisfaction in online live classes for students majoring in Chinese language and literature was developed. The reliability and validity of the measurement instrument were assessed through testing, and the results showed good reliability and validity. Exploratory factor analysis and confirmatory factor analysis were used to establish a performance evaluation model. The findings of this study contribute to the field of online education by providing a structured method to assess student satisfaction with the Chinese language and literature through online live classes. The performance evaluation index developed in this study can be used by educational institutions to improve the quality of their online instructional programs and improve the overall learning experience for students. Thus, the novelty of the study is to develop an evaluation model that helps educational institutions to evaluate the effectiveness of online live classes and guide the improvement of instructional practices.