In the sense that it performs a function of communication with public, fashion illustration, which visualizes fashion information in an illustrated way, shares similar characteristics with graffiti, which represents the society of its time while having a value as a modern art itself. Therefore, the study aims to seek possibility of graffiti expression of fashion illustration, and to establish theoretical research systems for reestablishment of practical development methods of the graffiti expressions. The concrete contents of this study include followings: First, it examines the methods and characteristics of the graffiti expressions by analyzing the works of graffiti artists in order to understand the concept of graffiti and to find out the theoretical approach to it. Second, it investigates the characteristics of graffiti, and proposes concepts associated with graffiti after analyzing examples of fashion illustration which graffiti expressions are reflected. Third, it draws meanings that the use of graffiti expressions has in fashion illustration. In conclusion, graffiti expressions in fashion illustration are used in brand logos and text, human body deformation and omissions, autonomous expressions of variety of materials, symbolism, amusement, and autonomy as they are characterized by strong colors to express significance.