Park, Young-Min The aims of this paper are to investigate changes of writing instruc- tions methods in smart education environment, and to argue how to im- plement & improve the results into middle and high school students. For achieving this aims, this paper is trying to set up the definition of Smart Education Environment. This paper divides education environments of schools and classrooms into three types : Traditional, Computer based, and Smart. This paper proposes the principles of writing instruction as the reinforcement of transcription skills, the realization of audience, the enrichment of idea generation, the reinforcement of rewriting. The con- clusion of this paper is that the Smart education environment change methods of writing instruction into the strategy based, the activity based, the conference based, affective factor based writing instruction.