Diversification of evaluation subjects means that in the process of educational evaluation, evaluators should not be limited to teachers, but should include students, parents, society and other parties to participate. This evaluation method can understand students' learning situation more comprehensively and improve the fairness and accuracy of evaluation.

In the traditional educational evaluation system, teachers are often the only evaluators, while students are in a passive position to accept the evaluation. However, with the continuous renewal of educational ideas, people gradually realize that educational evaluation should be a diversified process, which needs opinions and feedback from all sides. Therefore, the diversification of evaluation subjects came into being.

The diversification of evaluation subjects can be realized in many ways. For example, in classroom teaching, teachers can invite students to participate in the evaluation process and let students evaluate their own learning; In homework, parents can participate in the evaluation process, supervise and guide their children's learning; In social practice, people in society can also participate in the evaluation process and evaluate students' practical ability.