The purpose of this study is to consider the applicability, materials, and usefulness of grammar education from the perspective of cognitive linguistics. The results are as follows: First, cognitive linguistics as a theory reveals the interrelationship between language, body-mind and culture, based on our experiences about the world and our ways of conceptualizing them, and it has great potential in explaining and interpreting linguistic phenomena. Second, cognitive linguistics can be applied effectively to second language education, home and abroad. Typical mechanisms applicable to grammar education are categorization, synonymy, figures of speech, motivation, construal, and so forth. Third, the content elements and usefulness of grammar education from the cognitive perspective are as follows: (1) Prototype theories successfully treat the asymmetry of category members in the levels of sound, form, vocabulary, sentence, and text, as well as the fuzziness of category boundaries. (2) Cognitive linguistics explains rationally the definition of a polysemous word, the boundary between the polysemous word and a homonym caused by the complexity of form-meaning, the asymmetry of a central meaning and a peripheral one, and the tendency of semantic expansion. (3) A figure of speech in cognitive linguistics is a conceptual and natural phenomenon based on bodily experiences, conceptual metaphor and metonymy, and the correlation of these deepens grammar education. (4) Motivation from the perspective of cognitive linguistics provides the possibility for interesting exploration tasks through the wide range of iconicity appearing in the ‘structure-form’ of a linguistic expression, as well as word formation. (5) Finally, construal allows us to understand the nature of meaning and grammaticality in synonymy, ambiguity, motion, honorification, and so forth. To sum up, the remaining tasks of grammar education from the perspective of cognitive linguistics are to materialize the breadth and depth of content elements, to prepare appropriate teaching materials and methods for application in the classroom, and to measure their educational effects.