Modern men’s wear design emphasizes on style character and image appearance. The basic thoughts for building the design style of modern men’s wear are expounded. The emerging background of modern men’s wear design style is analyzed from different points such as history, culture, popularity of modern men’s wear, and designers’ works, showing its origin and development. The specific ways for expression of the style are discussed, and they include silhouette, structure, color, fabric, craftwork, details and collocation. Inner links of the style are thus clarified. It is considered that in general there are four couples of corresponding styles (classicism & avant-garde, reminiscence & modernism, feminization & masculinity, sports/leisure & elegance) that are the frame of modern men’s wear style. This conclusion is helpful to grasp the tendency, image and soul of brand for the style while designing men’s wear.