Abstract:The importance and the instability of a innovation alliance jointly to make it become a research hotspot. The leader of an alliance is the key members to make the alliance stability and sustainable development. Firstly, In this paper based on his own power and ability as the core to discuss it effects the leaguers knowledge spillover and knowledge absorptive capacity .And then to make an impact on the innovation alliance performance and stability. Finally, it is empirically tested the positive relationship between contract power, control power, influence, the capacity of the resources allocation and knowledge spillover, knowledge absorptive capacity respectively. And ultimately promote the improvement of the innovation alliance performance to guarantee the stability of the innovation alliance operation.