Abstract: Manufacturing performance components and knowledge management keys are analyzed and interpreted. Interacting ways of knowledge obtaining & transferring & integration influencing on economic, innovation and environment performance are discovered from the viewpoints of methods & process & results. Accordingly, knowledge management intervening stage and influencing degree on manufacturing enterprise different performance are also confirmed based on structural equation model. The results show that knowledge management has the hole process impacts on manufacturing enterprise ecological performance, and there is large space to improve environment and ecological knowledge; external knowledge obtaining can not impact enterprise innovation performance directly, which shows that manufacturing enterprise innovation capability has received great progress and currently knowledge transferring and integrating has become the more important; only knowledge integration has obvious impacts on enterprise economic performance, which proves that at the beginning knowledge management can’t bring practical revenue for enterprise, while in the long run keeping knowledge management activities can finally optimize enterprise economic performance.