Kim, Yune-jeong The Purpose of this study is to develop teaching-learning model of writing self-introduction letter for secondary students through persuasive communication strategy. In this process, students can experience self-adjustment by consulting and discussing with colleagues. This model focuses on the ‘communication’ which is the core character of Self-introduction Letter writing. In all the steps of writing, students can make a strategic story by finding the precious things in their lives and find a important direction of writing. They can use of core strategy and apply to write not only Self-introduction Letter but also other genre writing. k e y w o rd s Writing Self-introduction Letter, Advertising Planning Strategy, Process- Based Approach, Persuasive Communication Strategy