This research studies two factors, brand image and product design, and probe into their influence on new product development performance. The main important results of this research are mentioned below: (1) Product design has positive influence on new product development performance. (2) When companies convey different brand images, they emphasize the different key points of product design. Companies that convey the functional brand image put more emphasis on the design of engineering; companies that convey the sensory brand image put more emphasis on the design of appearance and symbol. (3) The collocation of brand image and product design has influence on new product development performance. When companies convey the functional brand image, taking the design of engineering brings higher new product development performance than taking the design of aesthetics; nevertheless, when companies convey the sensory brand image, they can not get higher new product development performance through taking the design of aesthetics merely.