By analyzing the act of cluster supply chain enterprises dynamic game for innovation on the way of competing or corporate from the perspective of information spillover. Obtaining the results: when enterprise non-cooperation innovation and the information does not spill, the enterprises R&D spending up, but least efficient, profit minimum; Enterprise non-cooperation innovation, and the information is completely spills, enterprises R&D spending at least the emergence of innovative "externalities"; When cooperative innovation, enterprises R&D expenditures are more efficient, and innov...