This article’s aim is to propose a method of college writing education to help students improve their own writing qualitatively. As an attempt to do this, I searched for a method of writing with grammatical device '그러나' which is a useful for college students' writing. To do this, I searched for ways to improve the quality of the learner's writing tasks with non-textual. Based on the results of previous studies, the contributions and limitations of each research field. As a result of this study, it was suggested that grammar education in writing education should be based on simple principles and rules, and should lead the learner to improve his writing qualitatively, and the improvement plan should be practical and concrete. Based on these results, the proposed method in this paper was a way for learners to improve the previous achievements by using the grammatical device '그러나'. By recognizing the grammatical device ' 그러나', it suggests that it can effectively improve its structure by understanding the morphologic, syntactic, semantic and grammatical implications and adjusting the language units and components involved.