A subject knowledge multi-hop question and answer method based on structured planning and reflection reasoning comprises the steps that firstly, for input subject questions, a structured planning module is adopted to conduct
decomposition and subtask modeling on complex questions, and a multi-stage reasoning path conforming to a subject knowledge
system is generated; secondly, dynamically retrieving related knowledge contents from teaching materials and subject knowledge bases, and constructing a structural
chemistry knowledge context expressed in a triple form in combination with an
information extraction technology driven by a thinking chain; and finally, introducing an inverse reasoning module, and performing
consistency analysis and self-adaptive correction on an intermediate reasoning result, thereby realizing accurate subject knowledge
questions and answers. According to the method,
controllability of the reasoning process in subject
knowledge question answering is achieved through structured planning,
correctness and robustness of a reasoning chain are improved through reflection reasoning, the understanding depth of textbook knowledge and
question answering performance are improved in combination with structured knowledge contexts, and the method is suitable for scenes such as intelligent teaching tutoring and
automatic learning evaluation.