New product developmen（NPD）is one of the most important method for company to maintain its competitive advantage in the market. Based on the survey from 136 companies in Guizhou and Fujian provinces，the results show as follows. Learning orientation has positive effect on boundary?spanning search. Boundary?spanning search could improve product innovation capability. Product innovation capability has positive effect on NPD performance. Boundary?spanning search plays completely intermediating role between Learning orientation and product innovation capability. Boundary?spanning search and product innovation capability plays partial intermediating role between Learning orientation and NPD performance.