The invention discloses a knowledge mapping construction method for subject education resources. The method comprises the following steps that 1, information of entities and relation information in the subject education resources are extracted; 2, cleaning integration is carried out on the information, information redundancy and wrong information are eliminated, thereby ensuring the quality of theinformation; 3, classification and semantic association are carried out on the information to form a knowledge representation form of 'entity-relation-entity' triples, and a visual tool is utilized to construct a subject resource knowledge mapping; 4, tacit knowledge is further excavated through a knowledge inference, evolution and update are carried out on the knowledge mapping, thereby enriching and extending a knowledge base. The knowledge mapping construction method for the subject education resources has the advantages that the knowledge mapping for constructing subject resources is provided, the continuity and consistency of subject resource content are achieved, the systematized and systematic subject knowledge mapping is provided for learners, thereby promoting the practical application of a knowledge mapping technology in the fields of education resource management, information retrieval, knowledge recommendation and the like.