Abstract: With the phenomenon of technological convergence and industrial convergence getting universal unp recedentedly,co-operations between enterprises from different industries are occurring frequently. The new trend of co-opetition in technological convergence compels enterprises to think over their strategies in product innovation:how to break through the fetters from industrial boundary,and work together with firms from different industrial departments and technological areas,to decrease the cost,increase the output,improve the profit,and promote the social welfare. Thus,in view of most popular cooperative R&D model:R&D cartelization,and based on the two stage game model of D'Aspremont,we set up a R&D Cartelization Model of enterprises during the industrial convergence in this paper,and discuss how substitution coefficient between convergent product and original products,spillover coefficient of R&D,and in-novation coefficient of R&D influence equilibrium in cost,equilibrium in investment of R&D,equilibrium in output of convergent product and original products,equilibrium in firms profit. And we also give a case study.

Key words: technological convergence, enterprise, R&D cartelization