Abstract:Aiming to cooperative R D modes for multi stages and multi participations of complex product, introducing the elasticity and diffusion of generic technology, we build the bargain dynamic game model and do the pareto improvement. The optimal distribution coefficient, the optimal effort level of enterprises and subsidy of government are gained. The results show that if the elasticity of generic technology is high, the generic technology company gets more benefits. With the increase of elasticity and diffusion of generic technology, the optimal effort level of enterprises is increasing. If the elasticity of generic technology is low, enterprise cooperation mode is better.;if the elasticity is high, the government-involved cooperation mode shows more advantages.