Abstract: Abstract: Technology convergence is an important symbol of industry convergence and plays a very important role in promoting major disruptive technological innovation and new product development. In the turbulent environment of rapid technology development, this paper analyzes the relationship between complementarity technology convergence, substitution technology convergence and enterprise new product development performance. By using the data of new products and patents of 343 green-power automobile enterprises in China's automobile industry and adopting the fixed- effect negative binomial regression model, the empirical study finds that: the substitution technology convergence is positively related to the company’s new product development performance and the technological turbulence has no effect on the relationship between them. Meanwhile a U-shaped relationship is found between the complementarity technology convergence and firm new product development performance and the technological turbulence has a signification negative moderating effect on the positive relationship between the complementarity technology convergence and firm new product development performance.