Directionality principle, timeliness principle, feasibility principle and comprehensiveness principle. The principle of preschool children's education evaluation is directional. The principle of feasibility is to measure and evaluate the phenomenon of preschool education with emphasis on the evaluation content and standards, and affirm or deny the results. The principle of comprehensiveness is to collect information, rather than one-sided emphasis on one of the evaluation indicators. The principle of fashion is to complete the evaluation within a specified time to facilitate the evaluation of students' psychological quality.