Abstract Under the increasingly competitive global market, a firm simply can not survive without new products developed under network cooperation, especially for high-tech industries. Even though new product development (NPD) can be carried out in customer–supplier collaboration, only some products can be developed successfully at the end. Therefore, how to increase the possibility of having more successful NPD is a critical issue for a firm. This paper, by reviewing literature and analyzing theories, first analyzes the characteristics of strategic project of NPD, including knowledge creation model, development process, product and technology maturity. Then, three-dimension elements, consisting of knowledge management methods, linkage adjustment positioning and development process differentiation, are proposed to be adopted in the NPD process in order to obtain an optimal integration effect in network cooperation. As a result, an innovative, efficient and effective NPD can be elevated and achieved. Finally, the balanced scorecard (BSC) associated with fuzzy analytic hierarchy process (FAHP) is used to evaluate the effectiveness of the proposed method.