To know customers' needs and preferences towards men-suits is a heavy task that every men-suit dealer makes great efforts to fulfill. This research centered on the men-suit dealer's business status as well as the customer's preference towards men-suits. The results of this research showed that (1) the business dealer should put emphasis on the performance and attitude of salesmen first, and this was a matter of selling products successfully or not; (2) during buying men-sui的, the customer was not inf1uenced by his or her dwelling place, but by individual basic variables; and (3) those who had bought men-suits mainly used them for work, while those who had not bought men-suits were likely to buy them for formal occasions. According to these results, it was suggested that the men-suit dealers switch their attentions from tangible products to intangible service during running business, and it was crucial for men-suit dealers to change and improve their images.