The Purpose of this study is to develop teaching-learning model ofwriting self-introduction letter for secondary students through persuasivecommunication strategy. In this process, students can experience self-adjustmentby consulting and discussing with colleagues. This model focuseson the ‘communication’ which is the core character of Self-introductionLetter writing. In all the steps of writing, students can make a strategicstory by finding the precious things in their lives and find a importantdirection of writing. They can use of core strategy and apply to write notonly Self-introduction Letter but also other genre writing.