The aim of research is to help Korean learners for purpose of business to write business documents. Business documents have standardize frame which are distinguished by document form and writing style. So, there is little difficulty in writing business documents if someone is familiar with basic frame used in business. This study analyzed documents forms and writing styles used in five different types of business documents which are frequently used in work places and found several characteristics of the forms and styles. In chapter 1, leaner’s needs existing studies researched are analyzed. In chapter 2, this paper researches definition and classification of stylistics and analysis of business documents In chapter 3, this paper analyzes formations and styles of business documents using business documents In chapter 4, this paper proposes diagrams using the result of chapter 3 and the teaching plan based on the process oriented writing method I expect this study to be developed further as a new course of Korean language education, supporting undergraduate students who want jobs in Korean companies as well as Korean learners who are employed in a Korean company. (Han Kuk University of Foreign Studies)