【关 键 词 】：
Ontology describes the concept with clarity and uniqueness, which can solve the problem of poor organization in online learning and improve the efficiency of personalized learning. However, the ontology in current education is preset, and is difficult to cover the whole domain concept. In addition, the knowledge in education is situational and subjective. In order to adapt to the changes of situation and learners, the design of ontology should be evolutive. To realize the construction and evolution of ontology, this study designs the visualization construction and evolution system of ontology, chooses different themes and 123 learners of different grades, and conducts experiments through semantic annotation, knowledge map and reverse quiz. It is expected that learners can use that system to promote the construction and evolution of ontology while completing their learning tasks. The results indicate that the system generates and evolves ontological triples 3083, among them, 2431 subjective knowledge, which verifies the system can better promote the construction and evolution of ontology, especially the construction and evolution of subjective knowledge and situational knowledge.